diff --git a/package.json b/package.json
index e0588fa..96bf8aa 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": "21.1.1",
+    "ts-jest": "21.1.2",
     "ts-node": "3.3.0",
     "tslint": "5.7.0",
     "tslint-config-ikatyang": "2.4.0",
diff --git a/yarn.lock b/yarn.lock
index 34e4e4e..7d9a58d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2658,9 +2658,9 @@ 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@21.1.1:
-  version "21.1.1"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-21.1.1.tgz#a63380127e59e112a113106237f302d17c72cd48"
+ts-jest@21.1.2:
+  version "21.1.2"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-21.1.2.tgz#3f5aa88125d9f6e9ae07b745e20062d069c22ad9"
   dependencies:
     babel-core "^6.24.1"
     babel-plugin-istanbul "^4.1.4"