diff --git a/package-lock.json b/package-lock.json
index c8915e2b..b5d9975b 100644
--- a/package-lock.json
+++ b/package-lock.json
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+      "requires": {
+        "call-bind": "^1.0.0",
+        "get-intrinsic": "^1.0.2",
+        "object-inspect": "^1.9.0"
+      },
+      "dependencies": {
+        "object-inspect": {
+          "version": "1.12.2",
+          "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.12.2.tgz",
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+        }
+      }
+    },
     "signal-exit": {
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       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
@@ -16303,7 +16656,6 @@
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-      "dev": true,
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@@ -16617,7 +16969,8 @@
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       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
-      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
+      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=",
+      "dev": true
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@@ -16676,8 +17029,7 @@
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       "resolved": "https://registry.npmjs.org/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz",
-      "integrity": "sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM=",
-      "dev": true
+      "integrity": "sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM="
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@@ -16795,6 +17147,19 @@
       "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
       "dev": true
     },
+    "strip-outer": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/strip-outer/-/strip-outer-1.0.1.tgz",
+      "integrity": "sha512-k55yxKHwaXnpYGsOzg4Vl8+tDrWylxDEpknGjhTiZB8dFRU5rTo9CAzeycivxV3s+zlTKwrs6WxMxR95n26kwg==",
+      "requires": {
+        "escape-string-regexp": "^1.0.2"
+      }
+    },
+    "strip-url-auth": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/strip-url-auth/-/strip-url-auth-1.0.1.tgz",
+      "integrity": "sha512-++41PnXftlL3pvI6lpvhSEO+89g1kIJC4MYB5E6yH+WHa5InIqz51yGd1YOGd7VNSNdoEOfzTMqbAM/2PbgaHQ=="
+    },
     "style-loader": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/style-loader/-/style-loader-1.0.0.tgz",
@@ -17211,7 +17576,8 @@
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       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
-      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw==",
+      "dev": true
     },
     "tough-cookie": {
       "version": "2.4.3",
@@ -17264,6 +17630,14 @@
       "integrity": "sha1-n5up2e+odkw4dpi8v+sshI8RrbM=",
       "dev": true
     },
+    "trim-repeated": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/trim-repeated/-/trim-repeated-1.0.0.tgz",
+      "integrity": "sha512-pkonvlKk8/ZuR0D5tLW8ljt5I8kmxp2XKymhepUeOdCEfKpZaktSArkLHZt76OB1ZvO9bssUsDty4SWhLvZpLg==",
+      "requires": {
+        "escape-string-regexp": "^1.0.2"
+      }
+    },
     "trim-right": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
@@ -17638,20 +18012,12 @@
       }
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     "union": {
-      "version": "0.4.6",
-      "resolved": "https://registry.npmjs.org/union/-/union-0.4.6.tgz",
-      "integrity": "sha1-GY+9rrolTniLDvy2MLwR8kopWeA=",
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/union/-/union-0.5.0.tgz",
+      "integrity": "sha512-N6uOhuW6zO95P3Mel2I2zMsbsanvvtgn6jVqJv4vbVcz/JN0OkL9suomjQGmWtxJQXOCqUJvquc1sMeNz/IwlA==",
       "dev": true,
       "requires": {
-        "qs": "~2.3.3"
-      },
-      "dependencies": {
-        "qs": {
-          "version": "2.3.3",
-          "resolved": "https://registry.npmjs.org/qs/-/qs-2.3.3.tgz",
-          "integrity": "sha1-6eha2+ddoLvkyOBHaghikPhjtAQ=",
-          "dev": true
-        }
+        "qs": "^6.4.0"
       }
     },
     "union-value": {
@@ -17727,8 +18093,7 @@
     "universalify": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
-      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
-      "dev": true
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
     },
     "unix-crypt-td-js": {
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@@ -19949,8 +20314,7 @@
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       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "write-file-atomic": {
       "version": "2.4.3",
diff --git a/package.json b/package.json
index 399a7a94..022fe531 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "@nguniversal/module-map-ngfactory-loader": "v7.0.2",
     "angular-cli-ghpages": "^0.6.0",
     "angulartics2": "latest",
-    "express": "^4.15.2",
+    "express": "^4.18.2",
     "linkifyjs": "^2.1.8",
     "ngx-markdown": "^8.2.1",
     "rxjs": "~6.4.0",
@@ -63,7 +63,7 @@
     "@types/jest": "24.0.23",
     "@types/node": "~8.9.4",
     "codelyzer": "^5.0.0",
-    "http-server": "^0.11.1",
+    "http-server": "^0.11.2",
     "jasmine-core": "~3.4.0",
     "jasmine-spec-reporter": "~4.2.1",
     "jest": "24.9.0",