diff --git a/package.json b/package.json
index 2e43c6c..b17c9f5 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": "21.0.1",
+    "ts-jest": "21.1.0",
     "ts-node": "3.3.0",
     "tslint": "5.7.0",
     "tslint-config-ikatyang": "2.4.0",
diff --git a/yarn.lock b/yarn.lock
index 4e747a5..5f7f6c8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -290,7 +290,7 @@ babel-plugin-transform-strict-mode@^6.24.1:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
-babel-preset-jest@^21.0.0, babel-preset-jest@^21.2.0:
+babel-preset-jest@^21.2.0:
   version "21.2.0"
   resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-21.2.0.tgz#ff9d2bce08abd98e8a36d9a8a5189b9173b85638"
   dependencies:
@@ -1387,7 +1387,7 @@ jest-cli@^21.2.1:
     worker-farm "^1.3.1"
     yargs "^9.0.0"
 
-jest-config@^21.0.0, jest-config@^21.2.1:
+jest-config@^21.2.1:
   version "21.2.1"
   resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-21.2.1.tgz#c7586c79ead0bcc1f38c401e55f964f13bf2a480"
   dependencies:
@@ -1555,7 +1555,7 @@ jest-snapshot@^21.2.1:
     natural-compare "^1.4.0"
     pretty-format "^21.2.1"
 
-jest-util@^21.0.0, jest-util@^21.2.1:
+jest-util@^21.2.1:
   version "21.2.1"
   resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-21.2.1.tgz#a274b2f726b0897494d694a6c3d6a61ab819bb78"
   dependencies:
@@ -2461,12 +2461,18 @@ sntp@2.x.x:
   dependencies:
     hoek "4.x.x"
 
-source-map-support@^0.4.0, source-map-support@^0.4.15, source-map-support@^0.4.4:
+source-map-support@^0.4.0, source-map-support@^0.4.15:
   version "0.4.18"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.18.tgz#0286a6de8be42641338594e97ccea75f0a2c585f"
   dependencies:
     source-map "^0.5.6"
 
+source-map-support@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.0.tgz#2018a7ad2bdf8faf2691e5fddab26bed5a2bacab"
+  dependencies:
+    source-map "^0.6.0"
+
 source-map@^0.4.4:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
@@ -2477,6 +2483,10 @@ source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1, source-map@~0.5.6:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
+source-map@^0.6.0:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+
 spdx-correct@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-1.0.2.tgz#4b3073d933ff51f3912f03ac5519498a4150db40"
@@ -2648,20 +2658,20 @@ 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@21.0.1:
-  version "21.0.1"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-21.0.1.tgz#825138413eb299d12d60d0ae4d5a49f76b1cfeac"
+ts-jest@21.1.0:
+  version "21.1.0"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-21.1.0.tgz#f8d1a6dfadd6e65f8ced525c638eac3543842d3c"
   dependencies:
     babel-core "^6.24.1"
     babel-plugin-istanbul "^4.1.4"
     babel-plugin-transform-es2015-modules-commonjs "^6.24.1"
-    babel-preset-jest "^21.0.0"
+    babel-preset-jest "^21.2.0"
     fs-extra "^4.0.0"
-    jest-config "^21.0.0"
-    jest-util "^21.0.0"
+    jest-config "^21.2.1"
+    jest-util "^21.2.1"
     pkg-dir "^2.0.0"
-    source-map-support "^0.4.4"
-    yargs "^8.0.1"
+    source-map-support "^0.5.0"
+    yargs "^9.0.1"
 
 ts-node@3.3.0:
   version "3.3.0"
@@ -2951,25 +2961,7 @@ yargs-parser@^7.0.0:
   dependencies:
     camelcase "^4.1.0"
 
-yargs@^8.0.1:
-  version "8.0.2"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
-  dependencies:
-    camelcase "^4.1.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^2.0.0"
-    read-pkg-up "^2.0.0"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^7.0.0"
-
-yargs@^9.0.0:
+yargs@^9.0.0, yargs@^9.0.1:
   version "9.0.1"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-9.0.1.tgz#52acc23feecac34042078ee78c0c007f5085db4c"
   dependencies: