diff --git a/package.json b/package.json
index 6cf98a0..078df05 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "jest-playback": "1.0.1",
     "prettier": "1.7.4",
     "prettier-config-ikatyang": "1.1.1",
-    "ts-jest": "21.2.3",
+    "ts-jest": "21.2.4",
     "ts-node": "3.3.0",
     "tslint": "5.8.0",
     "tslint-config-ikatyang": "2.5.1",
diff --git a/yarn.lock b/yarn.lock
index 7050d10..69c7314 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2768,9 +2768,9 @@ trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
-ts-jest@21.2.3:
-  version "21.2.3"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-21.2.3.tgz#d90cd143c433e8dfd9b8df54921c7f3f1d8b9819"
+ts-jest@21.2.4:
+  version "21.2.4"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-21.2.4.tgz#8fbcfbfbf0c58cced10dcc34a5190acc8c5312ef"
   dependencies:
     babel-core "^6.24.1"
     babel-plugin-istanbul "^4.1.4"
@@ -2779,7 +2779,6 @@ ts-jest@21.2.3:
     cpx "^1.5.0"
     fs-extra "^4.0.2"
     jest-config "^21.2.1"
-    jest-util "^21.2.1"
     pkg-dir "^2.0.0"
     source-map-support "^0.5.0"
     yargs "^10.0.3"