diff --git a/package.json b/package.json
index 364122b6..02b15ca2 100644
--- a/package.json
+++ b/package.json
@@ -127,7 +127,7 @@
     "terser-webpack-plugin": "1.4.1",
     "ts-jest": "24.0.2",
     "ts-loader": "6.0.4",
-    "tslint": "5.18.0",
+    "tslint": "5.20.0",
     "tslint-config-prettier": "1.18.0",
     "tslint-loader": "3.6.0",
     "tslint-react": "4.0.0",
diff --git a/yarn.lock b/yarn.lock
index 8ae2d024..354e0abc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2001,9 +2001,9 @@ diff-sequences@^24.9.0:
   version "24.9.0"
   resolved "https://registry.yarnpkg.com/diff-sequences/-/diff-sequences-24.9.0.tgz#5715d6244e2aa65f48bba0bc972db0b0b11e95b5"
 
-diff@^3.2.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
+diff@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.1.tgz#0c667cb467ebbb5cea7f14f135cc2dba7780a8ff"
 
 diffie-hellman@^5.0.0:
   version "5.0.3"
@@ -6701,15 +6701,15 @@ tslint-react@4.0.0:
   dependencies:
     tsutils "^3.9.1"
 
-tslint@5.18.0:
-  version "5.18.0"
-  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.18.0.tgz#f61a6ddcf372344ac5e41708095bbf043a147ac6"
+tslint@5.20.0:
+  version "5.20.0"
+  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.20.0.tgz#fac93bfa79568a5a24e7be9cdde5e02b02d00ec1"
   dependencies:
     "@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"