diff --git a/package-lock.json b/package-lock.json
index 014a3b9acd..e3cf8a1a6b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7069,9 +7069,9 @@
       }
     },
     "diff": {
-      "version": "3.5.0",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
-      "integrity": "sha1-gAwN0eCov7yVg1wgKtIg/jF+WhI="
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
+      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A=="
     },
     "diff-sequences": {
       "version": "25.2.1",
@@ -23631,15 +23631,15 @@
       "integrity": "sha1-w8GflZc/sKYpc/sJ2Q2WHuQ+XIo="
     },
     "tslint": {
-      "version": "5.19.0",
-      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.19.0.tgz",
-      "integrity": "sha1-osvUp2mThtqCP2tJm4OU1sR7uWg=",
+      "version": "5.20.1",
+      "resolved": "https://registry.npmjs.org/tslint/-/tslint-5.20.1.tgz",
+      "integrity": "sha512-EcMxhzCFt8k+/UP5r8waCf/lzmeSyVlqxqMEDQE7rWYiQky8KpIBz1JAoYXfROHrPZ1XXd43q8yQnULOLiBRQg==",
       "requires": {
         "@babel/code-frame": "^7.0.0",
         "builtin-modules": "^1.1.1",
         "chalk": "^2.3.0",
         "commander": "^2.12.1",
-        "diff": "^3.2.0",
+        "diff": "^4.0.1",
         "glob": "^7.1.1",
         "js-yaml": "^3.13.1",
         "minimatch": "^3.0.4",
@@ -23650,15 +23650,10 @@
         "tsutils": "^2.29.0"
       },
       "dependencies": {
-        "commander": {
-          "version": "2.20.0",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-          "integrity": "sha1-1YuytcHuj4ew00ACfp6U4iLFpCI="
-        },
         "tsutils": {
           "version": "2.29.0",
           "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-2.29.0.tgz",
-          "integrity": "sha1-MrSIUBRnrL7dS4VJhnOggSrKC5k=",
+          "integrity": "sha512-g5JVHCIJwzfISaXpXE1qvNalca5Jwob6FjI4AoPlqMusJ6ftFE7IkkFoMhVLRgK+4Kx3gkzb8UZK5t5yTTvEmA==",
           "requires": {
             "tslib": "^1.8.1"
           }
diff --git a/package.json b/package.json
index c09c311020..611966356a 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "react-dom": "^16.13.0",
     "react-emotion": "^10.0.0",
     "react-helmet": "^5.2.0",
-    "tslint": "^5.11.0",
+    "tslint": "^5.20.1",
     "typescript": "^3.1.1"
   },
   "keywords": [