diff --git a/package.json b/package.json
index 7594a79..2d8c56b 100644
--- a/package.json
+++ b/package.json
@@ -25,12 +25,11 @@
     "@loafer/core": "^0.0.1"
   },
   "devDependencies": {
-    "@types/jest": "^22.2.3",
+    "@types/jasmine": "~2.8.5",
     "@types/node": "^9.3.0",
-    "jest": "^22.4.3",
+    "jasmine-core": "~2.8.0",
     "prettier": "^1.12.1",
     "rimraf": "^2.6.2",
-    "ts-jest": "^22.4.6",
     "ts-node": "^6.0.3",
     "tslint": "^5.10.0",
     "tslint-config-prettier": "^1.12.0",