diff --git a/jest.config.js b/jest.config.js
index 1dde4970c..43dc64487 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -13,9 +13,9 @@ module.exports = {
   testMatch: ['**/__tests__/**/?(spec|test).js', '**/?(*.)(spec|test).js'],
   moduleFileExtensions: ['js'],
   modulePathIgnorePatterns: ['<rootDir>/dist', '<rootDir>/dev'],
-  collectCoverage: true,
-  collectCoverageFrom: ['!**/node_modules/**', 'src/**'],
-  coverageDirectory: 'coverage',
-  coverageReporters: ['html', 'json'],
+  // collectCoverage: true,
+  // collectCoverageFrom: ['!**/node_modules/**', 'src/**'],
+  // coverageDirectory: 'coverage',
+  // coverageReporters: ['html', 'json'],
   cacheDirectory: '.cache/jest',
 }
diff --git a/package.json b/package.json
index 0d6eafea9..72e161a58 100644
--- a/package.json
+++ b/package.json
@@ -93,7 +93,7 @@
     "anymatch": "^3.0.0",
     "babel-core": "^7.0.0-0",
     "babel-eslint": "10.0.3",
-    "babel-jest": "24.1.0",
+    "babel-jest": "^26.0.0",
     "babel-plugin-closure-elimination": "^1.3.0",
     "babel-plugin-import-redirect": "^1.1.1",
     "babel-plugin-minify-dead-code-elimination": "^0.5.0",
diff --git a/src/adapters/lokijs/worker/encodeQuery/test.js b/src/adapters/lokijs/worker/encodeQuery/test.js
index 96efb40e3..cc673b73e 100644
--- a/src/adapters/lokijs/worker/encodeQuery/test.js
+++ b/src/adapters/lokijs/worker/encodeQuery/test.js
@@ -100,8 +100,8 @@ describe('LokiJS encodeQuery', () => {
           { col7: { $in: [1, 2, 3] } },
           { col8: { $and: [{ $nin: ['"a"', 'b', 'c'] }, { $not: { $aeq: null } }] } },
           { col9: { $between: [10, 11] } },
-          { col10: { $regex: /^.*abc$/i } },
-          { col11: { $and: [{ $not: { $eq: null } }, { $not: { $regex: /^.*abc$/i } }] } },
+          { col10: { $regex: /^.*abc$/is } },
+          { col11: { $and: [{ $not: { $eq: null } }, { $not: { $regex: /^.*abc$/is } }] } },
           { _status: { $ne: 'deleted' } },
         ],
       },
diff --git a/yarn.lock b/yarn.lock
index 6cf7709ea..c8e6b6356 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -73,17 +73,6 @@
     semver "^6.3.0"
     source-map "^0.5.0"
 
-"@babel/generator@^7.0.0":
-  version "7.3.2"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.3.2.tgz#fff31a7b2f2f3dad23ef8e01be45b0d5c2fc0132"
-  integrity sha512-f3QCuPppXxtZOEm5GWPra/uYUjmNQlu9pbAD8D/9jze4pTY83rTtB1igTBSwvkeNlC5gR24zFFkz+2WHLFQhqQ==
-  dependencies:
-    "@babel/types" "^7.3.2"
-    jsesc "^2.5.1"
-    lodash "^4.17.10"
-    source-map "^0.5.0"
-    trim-right "^1.0.1"
-
 "@babel/generator@^7.0.0-beta.44", "@babel/generator@^7.1.5":
   version "7.1.5"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.1.5.tgz#615f064d13d95f8f9157c7261f68eddf32ec15b3"
@@ -1279,15 +1268,6 @@
     lodash "^4.17.10"
     to-fast-properties "^2.0.0"
 
-"@babel/types@^7.3.2":
-  version "7.3.2"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.3.2.tgz#424f5be4be633fff33fb83ab8d67e4a8290f5a2f"
-  integrity sha512-3Y6H8xlUlpbGR+XvawiH0UXehqydTmNmEpozWcXymqwcrwYAl5KMvKtQ+TF6f6E08V6Jur7v/ykdDSF+WDEIXQ==
-  dependencies:
-    esutils "^2.0.2"
-    lodash "^4.17.10"
-    to-fast-properties "^2.0.0"
-
 "@bcoe/v8-coverage@^0.2.3":
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/@bcoe/v8-coverage/-/v8-coverage-0.2.3.tgz#75a2e8b51cb758a7553d6804a5932d7aace75c39"
@@ -2289,11 +2269,6 @@ array.prototype.flatmap@^1.2.4:
     es-abstract "^1.18.0-next.1"
     function-bind "^1.1.1"
 
-arrify@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
-  integrity sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=
-
 arrify@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-2.0.1.tgz#c9655e9331e0abcd588d2a7cad7e9956f66701fa"
@@ -2412,17 +2387,7 @@ babel-helper-remove-or-void@^0.4.3:
   resolved "https://registry.yarnpkg.com/babel-helper-remove-or-void/-/babel-helper-remove-or-void-0.4.3.tgz#a4f03b40077a0ffe88e45d07010dee241ff5ae60"
   integrity sha1-pPA7QAd6D/6I5F0HAQ3uJB/1rmA=
 
-babel-jest@24.1.0:
-  version "24.1.0"
-  resolved "https://registry.yarnpkg.com/babel-jest/-/babel-jest-24.1.0.tgz#441e23ef75ded3bd547e300ac3194cef87b55190"
-  integrity sha512-MLcagnVrO9ybQGLEfZUqnOzv36iQzU7Bj4elm39vCukumLVSfoX+tRy3/jW7lUKc7XdpRmB/jech6L/UCsSZjw==
-  dependencies:
-    babel-plugin-istanbul "^5.1.0"
-    babel-preset-jest "^24.1.0"
-    chalk "^2.4.2"
-    slash "^2.0.0"
-
-babel-jest@^26.6.3:
+babel-jest@^26.0.0, babel-jest@^26.6.3:
   version "26.6.3"
   resolved "https://registry.yarnpkg.com/babel-jest/-/babel-jest-26.6.3.tgz#d87d25cb0037577a0c89f82e5755c5d293c01056"
   integrity sha512-pl4Q+GAVOHwvjrck6jKjvmGhnO3jHX/xuB9d27f+EJZ/6k+6nMuPjorrYp7s++bKKdANwzElBWnLWaObvTnaZA==
@@ -2456,15 +2421,6 @@ babel-plugin-import-redirect@^1.1.1:
     babylon "^6.17.4"
     resolve "^1.3.2"
 
-babel-plugin-istanbul@^5.1.0:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-5.1.0.tgz#6892f529eff65a3e2d33d87dc5888ffa2ecd4a30"
-  integrity sha512-CLoXPRSUWiR8yao8bShqZUIC6qLfZVVY3X1wj+QPNXu0wfmrRRfarh1LYy+dYMVI+bDj0ghy3tuqFFRFZmL1Nw==
-  dependencies:
-    find-up "^3.0.0"
-    istanbul-lib-instrument "^3.0.0"
-    test-exclude "^5.0.0"
-
 babel-plugin-istanbul@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-6.0.0.tgz#e159ccdc9af95e0b570c75b4573b7c34d671d765"
@@ -2476,11 +2432,6 @@ babel-plugin-istanbul@^6.0.0:
     istanbul-lib-instrument "^4.0.0"
     test-exclude "^6.0.0"
 
-babel-plugin-jest-hoist@^24.1.0:
-  version "24.1.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-jest-hoist/-/babel-plugin-jest-hoist-24.1.0.tgz#dfecc491fb15e2668abbd690a697a8fd1411a7f8"
-  integrity sha512-gljYrZz8w1b6fJzKcsfKsipSru2DU2DmQ39aB6nV3xQ0DDv3zpIzKGortA5gknrhNnPN8DweaEgrnZdmbGmhnw==
-
 babel-plugin-jest-hoist@^26.6.2:
   version "26.6.2"
   resolved "https://registry.yarnpkg.com/babel-plugin-jest-hoist/-/babel-plugin-jest-hoist-26.6.2.tgz#8185bd030348d254c6d7dd974355e6a28b21e62d"
@@ -2611,14 +2562,6 @@ babel-preset-fbjs@^3.2.0, babel-preset-fbjs@^3.3.0:
     "@babel/plugin-transform-template-literals" "^7.0.0"
     babel-plugin-syntax-trailing-function-commas "^7.0.0-beta.0"
 
-babel-preset-jest@^24.1.0:
-  version "24.1.0"
-  resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-24.1.0.tgz#83bc564fdcd4903641af65ec63f2f5de6b04132e"
-  integrity sha512-FfNLDxFWsNX9lUmtwY7NheGlANnagvxq8LZdl5PKnVG3umP+S/g0XbVBfwtA4Ai3Ri/IMkWabBz3Tyk9wdspcw==
-  dependencies:
-    "@babel/plugin-syntax-object-rest-spread" "^7.0.0"
-    babel-plugin-jest-hoist "^24.1.0"
-
 babel-preset-jest@^26.6.2:
   version "26.6.2"
   resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-26.6.2.tgz#747872b1171df032252426586881d62d31798fee"
@@ -5386,29 +5329,11 @@ isstream@~0.1.2:
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
   integrity sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo=
 
-istanbul-lib-coverage@^2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.3.tgz#0b891e5ad42312c2b9488554f603795f9a2211ba"
-  integrity sha512-dKWuzRGCs4G+67VfW9pBFFz2Jpi4vSp/k7zBcJ888ofV5Mi1g5CUML5GvMvV6u9Cjybftu+E8Cgp+k0dI1E5lw==
-
 istanbul-lib-coverage@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-3.0.0.tgz#f5944a37c70b550b02a78a5c3b2055b280cec8ec"
   integrity sha512-UiUIqxMgRDET6eR+o5HbfRYP1l0hqkWOs7vNxC/mggutCMUIhWMm8gAHb8tHlyfD3/l6rlgNA5cKdDzEAf6hEg==
 
-istanbul-lib-instrument@^3.0.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-3.1.0.tgz#a2b5484a7d445f1f311e93190813fa56dfb62971"
-  integrity sha512-ooVllVGT38HIk8MxDj/OIHXSYvH+1tq/Vb38s8ixt9GoJadXska4WkGY+0wkmtYCZNYtaARniH/DixUGGLZ0uA==
-  dependencies:
-    "@babel/generator" "^7.0.0"
-    "@babel/parser" "^7.0.0"
-    "@babel/template" "^7.0.0"
-    "@babel/traverse" "^7.0.0"
-    "@babel/types" "^7.0.0"
-    istanbul-lib-coverage "^2.0.3"
-    semver "^5.5.0"
-
 istanbul-lib-instrument@^4.0.0, istanbul-lib-instrument@^4.0.3:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-4.0.3.tgz#873c6fff897450118222774696a3f28902d77c1d"
@@ -6217,16 +6142,6 @@ load-json-file@^2.0.0:
     pify "^2.0.0"
     strip-bom "^3.0.0"
 
-load-json-file@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-4.0.0.tgz#2f5f45ab91e33216234fd53adab668eb4ec0993b"
-  integrity sha1-L19Fq5HjMhYjT9U62rZo607AmTs=
-  dependencies:
-    graceful-fs "^4.1.2"
-    parse-json "^4.0.0"
-    pify "^3.0.0"
-    strip-bom "^3.0.0"
-
 locate-path@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"
@@ -7393,13 +7308,6 @@ path-type@^2.0.0:
   dependencies:
     pify "^2.0.0"
 
-path-type@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/path-type/-/path-type-3.0.0.tgz#cef31dc8e0a1a3bb0d105c0cd97cf3bf47f4e36f"
-  integrity sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==
-  dependencies:
-    pify "^3.0.0"
-
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
@@ -7811,14 +7719,6 @@ read-pkg-up@^2.0.0:
     find-up "^2.0.0"
     read-pkg "^2.0.0"
 
-read-pkg-up@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-4.0.0.tgz#1b221c6088ba7799601c808f91161c66e58f8978"
-  integrity sha512-6etQSH7nJGsK0RbG/2TeDzZFa8shjQ1um+SwQQ5cwKy0dhSXdOncEhb1CPpvQG4h7FyOV6EB6YlV0yJvZQNAkA==
-  dependencies:
-    find-up "^3.0.0"
-    read-pkg "^3.0.0"
-
 read-pkg-up@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-7.0.1.tgz#f3a6135758459733ae2b95638056e1854e7ef507"
@@ -7837,15 +7737,6 @@ read-pkg@^2.0.0:
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
-read-pkg@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-3.0.0.tgz#9cbc686978fee65d16c00e2b19c237fcf6e38389"
-  integrity sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=
-  dependencies:
-    load-json-file "^4.0.0"
-    normalize-package-data "^2.3.2"
-    path-type "^3.0.0"
-
 read-pkg@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-5.2.0.tgz#7bf295438ca5a33e56cd30e053b34ee7250c93cc"
@@ -8074,11 +7965,6 @@ require-directory@^2.1.1:
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
   integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
 
-require-main-filename@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
-  integrity sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=
-
 require-main-filename@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-2.0.0.tgz#d0b329ecc7cc0f61649f62215be69af54aa8989b"
@@ -8971,16 +8857,6 @@ terminal-link@^2.0.0:
     ansi-escapes "^4.2.1"
     supports-hyperlinks "^2.0.0"
 
-test-exclude@^5.0.0:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-5.1.0.tgz#6ba6b25179d2d38724824661323b73e03c0c1de1"
-  integrity sha512-gwf0S2fFsANC55fSeSqpb8BYk6w3FDvwZxfNjeF6FRgvFa43r+7wRiA/Q0IxoRU37wB/LE8IQ4221BsNucTaCA==
-  dependencies:
-    arrify "^1.0.1"
-    minimatch "^3.0.4"
-    read-pkg-up "^4.0.0"
-    require-main-filename "^1.0.1"
-
 test-exclude@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-6.0.0.tgz#04a8698661d805ea6fa293b6cb9e63ac044ef15e"