diff --git a/Pipfile.lock b/Pipfile.lock
index d84f7f9..d8280c1 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -30,7 +30,9 @@
                 "sha256:67b36c6b0070ef858e5438e82d3a3fb19db33a174572019744d7b965c95fa9b0",
                 "sha256:83766cdfc3492a693902eff193648b3cc9710e4a131815cd0cc60e30e9b7cf8f",
                 "sha256:935a0b328b79e03a47d87960836513bab1150d0faab44aff7968f8623ed48d62",
+                "sha256:982349cc24df7569ab955bafa3ba7575140db171c3bd757fa135d0c0c0d6990d",
                 "sha256:9c79eaca4b0b8fb973c6e0c4c6cd4be44e76dfd09d56cfc7b2a959289fda6682",
+                "sha256:9efcdfe1cc1670dde940f86e51fe080184f637106cf9b6d8dfc14cab9660d710",
                 "sha256:a24a37e441c36d6605029cfb035806ef4f888a37d757e64fb0488d03c3fff806",
                 "sha256:ab33b5965df89fd6e4ea7846cb9a28ece4e6d9ded23434d3321b992051a62de0",
                 "sha256:ad6c12e9ab809fd4f8891a085a7655ca2690a5753bb6258d9d602084f610a223",
@@ -61,7 +63,6 @@
                 "sha256:7d786f3ef5b33a04e6538089674f244a3b0f588155016559d950989010af97d0",
                 "sha256:8bf82bb7a466a54be7272dcb492f71d55a2453a58d862fb74c3f2083f2768543",
                 "sha256:9bbc1ae1c33c1bd3a2fc05a3aec328544d2b039ff0ce6f000063628a32fad777",
-                "sha256:9e992c68103ab5635728d29fcf132c669cb4e2db24d012685210276185009d17",
                 "sha256:9f1087abb67b34e55108bc610936b34363a7aac692023bcbb17e065c253a1f80",
                 "sha256:9fefcb92a3784b446abf3641d9a14dad815bee88e0edd10b9a9e0e144d01a991",
                 "sha256:a37836aa47d1b81c2db1a6b7a5e79926062b5d76bd962115a0e615551be2b48d",
@@ -74,10 +75,10 @@
         },
         "six": {
             "hashes": [
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
+                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
             ],
-            "version": "==1.11.0"
+            "version": "==1.12.0"
         }
     },
     "develop": {
@@ -90,17 +91,17 @@
         },
         "astroid": {
             "hashes": [
-                "sha256:a8d8c7fe34e34e868426b9bafce852c355a3951eef60bc831b2ed541558f8d37",
-                "sha256:e722228b5259ce8c7cbf75f3b0ee8b483cfbd4df01167474a84087d1aeade22c"
+                "sha256:6560e1e1749f68c64a4b5dee4e091fce798d2f0d84ebe638cf0e0585a343acf4",
+                "sha256:b65db1bbaac9f9f4d190199bb8680af6f6f84fd3769a5ea883df8a91fe68b4c4"
             ],
-            "version": "==2.0.0.dev4"
+            "version": "==2.2.5"
         },
         "attrs": {
             "hashes": [
-                "sha256:4b90b09eeeb9b88c35bc642cbac057e45a5fd85367b985bd2809c62b7b939265",
-                "sha256:e0d0eb91441a3b53dab4d9b743eafc1ac44476296a2053b6ca3af0b139faf87b"
+                "sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79",
+                "sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399"
             ],
-            "version": "==18.1.0"
+            "version": "==19.1.0"
         },
         "black": {
             "hashes": [
@@ -112,10 +113,10 @@
         },
         "certifi": {
             "hashes": [
-                "sha256:13e698f54293db9f89122b0581843a782ad0934a4fe0172d2a980ba77fc61bb7",
-                "sha256:9fa520c1bacfb634fa7af20a76bcbd3d5fb390481724c597da32c719a7dca4b0"
+                "sha256:046832c04d4e752f37383b628bc601a7ea7211496b4638f6514d0e5b9acc4939",
+                "sha256:945e3ba63a0b9f577b1395204e13c3a231f9bc0223888be653286534e5873695"
             ],
-            "version": "==2018.4.16"
+            "version": "==2019.6.16"
         },
         "chardet": {
             "hashes": [
@@ -126,10 +127,10 @@
         },
         "click": {
             "hashes": [
-                "sha256:29f99fc6125fbc931b758dc053b3114e55c77a6e4c6c3a2674a2dc986016381d",
-                "sha256:f15516df478d5a56180fbf80e68f206010e6d160fc39fa508b65e035fd75130b"
+                "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
+                "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
             ],
-            "version": "==6.7"
+            "version": "==7.0"
         },
         "googleapis-common-protos": {
             "hashes": [
@@ -152,7 +153,9 @@
                 "sha256:67b36c6b0070ef858e5438e82d3a3fb19db33a174572019744d7b965c95fa9b0",
                 "sha256:83766cdfc3492a693902eff193648b3cc9710e4a131815cd0cc60e30e9b7cf8f",
                 "sha256:935a0b328b79e03a47d87960836513bab1150d0faab44aff7968f8623ed48d62",
+                "sha256:982349cc24df7569ab955bafa3ba7575140db171c3bd757fa135d0c0c0d6990d",
                 "sha256:9c79eaca4b0b8fb973c6e0c4c6cd4be44e76dfd09d56cfc7b2a959289fda6682",
+                "sha256:9efcdfe1cc1670dde940f86e51fe080184f637106cf9b6d8dfc14cab9660d710",
                 "sha256:a24a37e441c36d6605029cfb035806ef4f888a37d757e64fb0488d03c3fff806",
                 "sha256:ab33b5965df89fd6e4ea7846cb9a28ece4e6d9ded23434d3321b992051a62de0",
                 "sha256:ad6c12e9ab809fd4f8891a085a7655ca2690a5753bb6258d9d602084f610a223",
@@ -177,6 +180,7 @@
             "hashes": [
                 "sha256:00a66d398c79ed1ae8490c7f18d912c318b57ce93125e4345460bf40fcd4259f",
                 "sha256:179ef9c760d7c89c99266fc5e338110a8926d4c8f5a1ed353a9efb589b377139",
+                "sha256:17e24c860a83843249b8e8ce24edc303dd4d8a62ca129ddbb775d0d794de0d44",
                 "sha256:2d0e9b258e4a2872a747b6d2b21e3397e89102014c711f43e9432ce1ba067afb",
                 "sha256:318bdd7f758511960e9fbad6d416b3f11f2de117a26b015a3661f77aa0babd24",
                 "sha256:3d91bd1ea3145dcc76a01adcae31fc75201519b07fccbda8f70ecf081d4a805a",
@@ -196,6 +200,7 @@
                 "sha256:9cf6188594f4b6d9ed1307f9114cd2272c3c49e4f66076ce0d732e89cc84fadb",
                 "sha256:9d8a096f3f8d5f8713ec5ddd744bead8b67adfd72d36828fa95a1ae9e3161825",
                 "sha256:a6699f3cc4ab156dccab99e1af2fb8fd8319432c579fcb8d0b02347d8b9efab8",
+                "sha256:acb86b0af6ff8156db00188e0f79ca23695cf8d678222bff5080ecc6730873c2",
                 "sha256:b12caceea93f7dc7342b098aa8f10d57406242e867308be13bc3d6995a9d1cc9",
                 "sha256:b918ca1195729701f760686dbd8240715b98a68006b9b4376be97ee59976485e",
                 "sha256:c0b78b0bc372d650da1080582d75c8b5bd6b8464ffde873c350180575c68c464",
@@ -210,52 +215,40 @@
         },
         "idna": {
             "hashes": [
-                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
-                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
+                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
+                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
             ],
-            "version": "==2.7"
+            "version": "==2.8"
         },
         "isort": {
             "hashes": [
-                "sha256:1153601da39a25b14ddc54955dbbacbb6b2d19135386699e2ad58517953b34af",
-                "sha256:b9c40e9750f3d77e6e4d441d8b0266cf555e7cdabdcff33c4fd06366ca761ef8",
-                "sha256:ec9ef8f4a9bc6f71eec99e1806bfa2de401650d996c59330782b89a5555c1497"
+                "sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1",
+                "sha256:6e811fcb295968434526407adb8796944f1988c5b65e8139058f2014cbe100fd"
             ],
-            "version": "==4.3.4"
+            "version": "==4.3.21"
         },
         "lazy-object-proxy": {
             "hashes": [
-                "sha256:0ce34342b419bd8f018e6666bfef729aec3edf62345a53b537a4dcc115746a33",
-                "sha256:1b668120716eb7ee21d8a38815e5eb3bb8211117d9a90b0f8e21722c0758cc39",
-                "sha256:209615b0fe4624d79e50220ce3310ca1a9445fd8e6d3572a896e7f9146bbf019",
-                "sha256:27bf62cb2b1a2068d443ff7097ee33393f8483b570b475db8ebf7e1cba64f088",
-                "sha256:27ea6fd1c02dcc78172a82fc37fcc0992a94e4cecf53cb6d73f11749825bd98b",
-                "sha256:2c1b21b44ac9beb0fc848d3993924147ba45c4ebc24be19825e57aabbe74a99e",
-                "sha256:2df72ab12046a3496a92476020a1a0abf78b2a7db9ff4dc2036b8dd980203ae6",
-                "sha256:320ffd3de9699d3892048baee45ebfbbf9388a7d65d832d7e580243ade426d2b",
-                "sha256:50e3b9a464d5d08cc5227413db0d1c4707b6172e4d4d915c1c70e4de0bbff1f5",
-                "sha256:5276db7ff62bb7b52f77f1f51ed58850e315154249aceb42e7f4c611f0f847ff",
-                "sha256:61a6cf00dcb1a7f0c773ed4acc509cb636af2d6337a08f362413c76b2b47a8dd",
-                "sha256:6ae6c4cb59f199d8827c5a07546b2ab7e85d262acaccaacd49b62f53f7c456f7",
-                "sha256:7661d401d60d8bf15bb5da39e4dd72f5d764c5aff5a86ef52a042506e3e970ff",
-                "sha256:7bd527f36a605c914efca5d3d014170b2cb184723e423d26b1fb2fd9108e264d",
-                "sha256:7cb54db3535c8686ea12e9535eb087d32421184eacc6939ef15ef50f83a5e7e2",
-                "sha256:7f3a2d740291f7f2c111d86a1c4851b70fb000a6c8883a59660d95ad57b9df35",
-                "sha256:81304b7d8e9c824d058087dcb89144842c8e0dea6d281c031f59f0acf66963d4",
-                "sha256:933947e8b4fbe617a51528b09851685138b49d511af0b6c0da2539115d6d4514",
-                "sha256:94223d7f060301b3a8c09c9b3bc3294b56b2188e7d8179c762a1cda72c979252",
-                "sha256:ab3ca49afcb47058393b0122428358d2fbe0408cf99f1b58b295cfeb4ed39109",
-                "sha256:bd6292f565ca46dee4e737ebcc20742e3b5be2b01556dafe169f6c65d088875f",
-                "sha256:cb924aa3e4a3fb644d0c463cad5bc2572649a6a3f68a7f8e4fbe44aaa6d77e4c",
-                "sha256:d0fc7a286feac9077ec52a927fc9fe8fe2fabab95426722be4c953c9a8bede92",
-                "sha256:ddc34786490a6e4ec0a855d401034cbd1242ef186c20d79d2166d6a4bd449577",
-                "sha256:e34b155e36fa9da7e1b7c738ed7767fc9491a62ec6af70fe9da4a057759edc2d",
-                "sha256:e5b9e8f6bda48460b7b143c3821b21b452cb3a835e6bbd5dd33aa0c8d3f5137d",
-                "sha256:e81ebf6c5ee9684be8f2c87563880f93eedd56dd2b6146d8a725b50b7e5adb0f",
-                "sha256:eb91be369f945f10d3a49f5f9be8b3d0b93a4c2be8f8a5b83b0571b8123e0a7a",
-                "sha256:f460d1ceb0e4a5dcb2a652db0904224f367c9b3c1470d5a7683c0480e582468b"
+                "sha256:02b260c8deb80db09325b99edf62ae344ce9bc64d68b7a634410b8e9a568edbf",
+                "sha256:18f9c401083a4ba6e162355873f906315332ea7035803d0fd8166051e3d402e3",
+                "sha256:1f2c6209a8917c525c1e2b55a716135ca4658a3042b5122d4e3413a4030c26ce",
+                "sha256:2f06d97f0ca0f414f6b707c974aaf8829c2292c1c497642f63824119d770226f",
+                "sha256:616c94f8176808f4018b39f9638080ed86f96b55370b5a9463b2ee5c926f6c5f",
+                "sha256:63b91e30ef47ef68a30f0c3c278fbfe9822319c15f34b7538a829515b84ca2a0",
+                "sha256:77b454f03860b844f758c5d5c6e5f18d27de899a3db367f4af06bec2e6013a8e",
+                "sha256:83fe27ba321e4cfac466178606147d3c0aa18e8087507caec78ed5a966a64905",
+                "sha256:84742532d39f72df959d237912344d8a1764c2d03fe58beba96a87bfa11a76d8",
+                "sha256:874ebf3caaf55a020aeb08acead813baf5a305927a71ce88c9377970fe7ad3c2",
+                "sha256:9f5caf2c7436d44f3cec97c2fa7791f8a675170badbfa86e1992ca1b84c37009",
+                "sha256:a0c8758d01fcdfe7ae8e4b4017b13552efa7f1197dd7358dc9da0576f9d0328a",
+                "sha256:a4def978d9d28cda2d960c279318d46b327632686d82b4917516c36d4c274512",
+                "sha256:ad4f4be843dace866af5fc142509e9b9817ca0c59342fdb176ab6ad552c927f5",
+                "sha256:ae33dd198f772f714420c5ab698ff05ff900150486c648d29951e9c70694338e",
+                "sha256:b4a2b782b8a8c5522ad35c93e04d60e2ba7f7dcb9271ec8e8c3e08239be6c7b4",
+                "sha256:c462eb33f6abca3b34cdedbe84d761f31a60b814e173b98ede3c81bb48967c4f",
+                "sha256:fd135b8d35dfdcdb984828c84d695937e58cc5f49e1c854eb311c4d6aa03f4f1"
             ],
-            "version": "==1.3.1"
+            "version": "==1.4.2"
         },
         "mccabe": {
             "hashes": [
@@ -266,10 +259,10 @@
         },
         "pkginfo": {
             "hashes": [
-                "sha256:5878d542a4b3f237e359926384f1dde4e099c9f5525d236b1840cf704fa8d474",
-                "sha256:a39076cb3eb34c333a0dd390b568e9e1e881c7bf2cc0aee12120636816f55aee"
+                "sha256:7424f2c8511c186cd5424bbf31045b77435b37a8d604990b79d4e70d741148bb",
+                "sha256:a6d9e40ca61ad3ebd0b72fbadd4fba16e4c0e4df0428c041e01e06eb6ee71f32"
             ],
-            "version": "==1.4.2"
+            "version": "==1.5.0.1"
         },
         "protobuf": {
             "hashes": [
@@ -281,7 +274,6 @@
                 "sha256:7d786f3ef5b33a04e6538089674f244a3b0f588155016559d950989010af97d0",
                 "sha256:8bf82bb7a466a54be7272dcb492f71d55a2453a58d862fb74c3f2083f2768543",
                 "sha256:9bbc1ae1c33c1bd3a2fc05a3aec328544d2b039ff0ce6f000063628a32fad777",
-                "sha256:9e992c68103ab5635728d29fcf132c669cb4e2db24d012685210276185009d17",
                 "sha256:9f1087abb67b34e55108bc610936b34363a7aac692023bcbb17e065c253a1f80",
                 "sha256:9fefcb92a3784b446abf3641d9a14dad815bee88e0edd10b9a9e0e144d01a991",
                 "sha256:a37836aa47d1b81c2db1a6b7a5e79926062b5d76bd962115a0e615551be2b48d",
@@ -302,37 +294,38 @@
         },
         "requests": {
             "hashes": [
-                "sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1",
-                "sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a"
+                "sha256:11e007a8a2aa0323f5a921e9e6a2d7e4e67d9877e85773fba9ba6419025cbeb4",
+                "sha256:9cf5292fcd0f598c671cfc1e0d7d1a7f13bb8085e9a590f48c010551dc6c4b31"
             ],
-            "version": "==2.19.1"
+            "version": "==2.22.0"
         },
         "requests-toolbelt": {
             "hashes": [
-                "sha256:42c9c170abc2cacb78b8ab23ac957945c7716249206f90874651971a4acff237",
-                "sha256:f6a531936c6fa4c6cfce1b9c10d5c4f498d16528d2a54a22ca00011205a187b5"
+                "sha256:380606e1d10dc85c3bd47bf5a6095f815ec007be7a8b69c878507068df059e6f",
+                "sha256:968089d4584ad4ad7c171454f0a5c6dac23971e9472521ea3b6d49d610aa6fc0"
             ],
-            "version": "==0.8.0"
+            "version": "==0.9.1"
         },
         "six": {
             "hashes": [
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
+                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
             ],
-            "version": "==1.11.0"
+            "version": "==1.12.0"
         },
         "toml": {
             "hashes": [
-                "sha256:8e86bd6ce8cc11b9620cb637466453d94f5d57ad86f17e98a98d1f73e3baab2d"
+                "sha256:229f81c57791a41d65e399fc06bf0848bab550a9dfd5ed66df18ce5f05e73d5c",
+                "sha256:235682dd292d5899d361a811df37e04a8828a5b1da3115886b73cf81ebc9100e"
             ],
-            "version": "==0.9.4"
+            "version": "==0.10.0"
         },
         "tqdm": {
             "hashes": [
-                "sha256:224291ee0d8c52d91b037fd90806f48c79bcd9994d3b0abc9e44b946a908fccd",
-                "sha256:77b8424d41b31e68f437c6dd9cd567aebc9a860507cb42fbd880a5f822d966fe"
+                "sha256:1be3e4e3198f2d0e47b928e9d9a8ec1b63525db29095cec1467f4c5a4ea8ebf9",
+                "sha256:7e39a30e3d34a7a6539378e39d7490326253b7ee354878a92255656dc4284457"
             ],
-            "version": "==4.23.4"
+            "version": "==4.35.0"
         },
         "twine": {
             "hashes": [
@@ -344,45 +337,38 @@
         },
         "typed-ast": {
             "hashes": [
-                "sha256:0948004fa228ae071054f5208840a1e88747a357ec1101c17217bfe99b299d58",
-                "sha256:10703d3cec8dcd9eef5a630a04056bbc898abc19bac5691612acba7d1325b66d",
-                "sha256:1f6c4bd0bdc0f14246fd41262df7dfc018d65bb05f6e16390b7ea26ca454a291",
-                "sha256:25d8feefe27eb0303b73545416b13d108c6067b846b543738a25ff304824ed9a",
-                "sha256:29464a177d56e4e055b5f7b629935af7f49c196be47528cc94e0a7bf83fbc2b9",
-                "sha256:2e214b72168ea0275efd6c884b114ab42e316de3ffa125b267e732ed2abda892",
-                "sha256:3e0d5e48e3a23e9a4d1a9f698e32a542a4a288c871d33ed8df1b092a40f3a0f9",
-                "sha256:519425deca5c2b2bdac49f77b2c5625781abbaf9a809d727d3a5596b30bb4ded",
-                "sha256:57fe287f0cdd9ceaf69e7b71a2e94a24b5d268b35df251a88fef5cc241bf73aa",
-                "sha256:668d0cec391d9aed1c6a388b0d5b97cd22e6073eaa5fbaa6d2946603b4871efe",
-                "sha256:68ba70684990f59497680ff90d18e756a47bf4863c604098f10de9716b2c0bdd",
-                "sha256:6de012d2b166fe7a4cdf505eee3aaa12192f7ba365beeefaca4ec10e31241a85",
-                "sha256:79b91ebe5a28d349b6d0d323023350133e927b4de5b651a8aa2db69c761420c6",
-                "sha256:8550177fa5d4c1f09b5e5f524411c44633c80ec69b24e0e98906dd761941ca46",
-                "sha256:898f818399cafcdb93cbbe15fc83a33d05f18e29fb498ddc09b0214cdfc7cd51",
-                "sha256:94b091dc0f19291adcb279a108f5d38de2430411068b219f41b343c03b28fb1f",
-                "sha256:a26863198902cda15ab4503991e8cf1ca874219e0118cbf07c126bce7c4db129",
-                "sha256:a8034021801bc0440f2e027c354b4eafd95891b573e12ff0418dec385c76785c",
-                "sha256:bc978ac17468fe868ee589c795d06777f75496b1ed576d308002c8a5756fb9ea",
-                "sha256:c05b41bc1deade9f90ddc5d988fe506208019ebba9f2578c622516fd201f5863",
-                "sha256:c9b060bd1e5a26ab6e8267fd46fc9e02b54eb15fffb16d112d4c7b1c12987559",
-                "sha256:edb04bdd45bfd76c8292c4d9654568efaedf76fe78eb246dde69bdb13b2dad87",
-                "sha256:f19f2a4f547505fe9072e15f6f4ae714af51b5a681a97f187971f50c283193b6"
+                "sha256:18511a0b3e7922276346bcb47e2ef9f38fb90fd31cb9223eed42c85d1312344e",
+                "sha256:262c247a82d005e43b5b7f69aff746370538e176131c32dda9cb0f324d27141e",
+                "sha256:2b907eb046d049bcd9892e3076c7a6456c93a25bebfe554e931620c90e6a25b0",
+                "sha256:354c16e5babd09f5cb0ee000d54cfa38401d8b8891eefa878ac772f827181a3c",
+                "sha256:4e0b70c6fc4d010f8107726af5fd37921b666f5b31d9331f0bd24ad9a088e631",
+                "sha256:630968c5cdee51a11c05a30453f8cd65e0cc1d2ad0d9192819df9978984529f4",
+                "sha256:66480f95b8167c9c5c5c87f32cf437d585937970f3fc24386f313a4c97b44e34",
+                "sha256:71211d26ffd12d63a83e079ff258ac9d56a1376a25bc80b1cdcdf601b855b90b",
+                "sha256:95bd11af7eafc16e829af2d3df510cecfd4387f6453355188342c3e79a2ec87a",
+                "sha256:bc6c7d3fa1325a0c6613512a093bc2a2a15aeec350451cbdf9e1d4bffe3e3233",
+                "sha256:cc34a6f5b426748a507dd5d1de4c1978f2eb5626d51326e43280941206c209e1",
+                "sha256:d755f03c1e4a51e9b24d899561fec4ccaf51f210d52abdf8c07ee2849b212a36",
+                "sha256:d7c45933b1bdfaf9f36c579671fec15d25b06c8398f113dab64c18ed1adda01d",
+                "sha256:d896919306dd0aa22d0132f62a1b78d11aaf4c9fc5b3410d3c666b818191630a",
+                "sha256:ffde2fbfad571af120fcbfbbc61c72469e72f550d676c3342492a9dfdefb8f12"
             ],
-            "markers": "python_version < '3.7' and implementation_name == 'cpython'",
-            "version": "==1.1.0"
+            "markers": "implementation_name == 'cpython'",
+            "version": "==1.4.0"
         },
         "urllib3": {
             "hashes": [
-                "sha256:a68ac5e15e76e7e5dd2b8f94007233e01effe3e50e8daddf69acfd81cb686baf",
-                "sha256:b5725a0bd4ba422ab0e66e89e030c806576753ea3ee08554382c14e685d117b5"
+                "sha256:4c291ca23bbb55c76518905869ef34bdd5f0e46af7afe6861e8375643ffee1a0",
+                "sha256:9a247273df709c4fedb38c711e44292304f73f39ab01beda9f6b9fc375669ac3"
             ],
-            "version": "==1.23"
+            "index": "pypi",
+            "version": "==1.24.2"
         },
         "wrapt": {
             "hashes": [
-                "sha256:d4d560d479f2c21e1b5443bbd15fe7ec4b37fe7e53d335d3b9b0a7b1226fe3c6"
+                "sha256:565a021fd19419476b9362b05eeaa094178de64f8361e44468f9e9d7843901e1"
             ],
-            "version": "==1.10.11"
+            "version": "==1.11.2"
         }
     }
 }
diff --git a/requirements.txt b/requirements.txt
index acb7041..37346f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,26 +1,27 @@
+-i https://pypi.org/simple/
 appdirs==1.4.3
-astroid==2.0.0.dev4
-attrs==18.1.0
+astroid==2.2.5
+attrs==19.1.0
 black==18.6b4
-certifi==2018.4.16
+certifi==2019.6.16
 chardet==3.0.4
-click==6.7
+click==7.0
 googleapis-common-protos==1.6.0b3
-grpcio==1.13.0
 grpcio-tools==1.13.0
-idna==2.7
-isort==4.3.4
-lazy-object-proxy==1.3.1
+grpcio==1.13.0
+idna==2.8
+isort==4.3.21
+lazy-object-proxy==1.4.2
 mccabe==0.6.1
-pkginfo==1.4.2
+pkginfo==1.5.0.1
 protobuf==3.6.0
 pylint==2.0.0.dev2
-requests==2.19.1
-requests-toolbelt==0.8.0
-six==1.11.0
-toml==0.9.4
-tqdm==4.23.4
+requests-toolbelt==0.9.1
+requests==2.22.0
+six==1.12.0
+toml==0.10.0
+tqdm==4.35.0
 twine==1.11.0
-typed-ast==1.1.0
-urllib3==1.23
-wrapt==1.10.11
+typed-ast==1.4.0 ; implementation_name == 'cpython'
+urllib3==1.24.2
+wrapt==1.11.2