diff --git a/package.json b/package.json
index 3f9b261..dfffaf5 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "prettier": "1.5.3",
     "prettier-config-ikatyang": "1.1.1",
     "ts-jest": "20.0.9",
-    "tslint": "5.5.0",
+    "tslint": "5.6.0",
     "tslint-config-ikatyang": "2.1.0",
     "tslint-config-prettier-ext": "1.4.0",
     "tslint-plugin-prettier": "1.0.0",
diff --git a/yarn.lock b/yarn.lock
index 35551d1..8d35451 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2400,9 +2400,9 @@ tslint-plugin-prettier@1.0.0:
     fast-diff "^1.1.1"
     tslib "^1.7.1"
 
-tslint@5.5.0:
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.5.0.tgz#10e8dab3e3061fa61e9442e8cee3982acf20a6aa"
+tslint@5.6.0:
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.6.0.tgz#088aa6c6026623338650b2900828ab3edf59f6cf"
   dependencies:
     babel-code-frame "^6.22.0"
     colors "^1.1.2"
@@ -2413,19 +2413,13 @@ tslint@5.5.0:
     resolve "^1.3.2"
     semver "^5.3.0"
     tslib "^1.7.1"
-    tsutils "^2.5.1"
+    tsutils "^2.7.1"
 
 tsutils@^1.4.0:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-1.9.1.tgz#b9f9ab44e55af9681831d5f28d0aeeaf5c750cb0"
 
-tsutils@^2.5.1:
-  version "2.7.1"
-  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.7.1.tgz#411a0e9466525a2b2869260a55620d7292155e24"
-  dependencies:
-    tslib "^1.7.1"
-
-tsutils@^2.6.1, tsutils@^2.8.0:
+tsutils@^2.6.1, tsutils@^2.7.1, tsutils@^2.8.0:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.8.0.tgz#0160173729b3bf138628dd14a1537e00851d814a"
   dependencies: