diff --git a/packages/vm/package.json b/packages/vm/package.json
index b4deb5c7f8..ad662d9635 100644
--- a/packages/vm/package.json
+++ b/packages/vm/package.json
@@ -14,12 +14,12 @@
     "coverage:test": "tape './tests/api/**/*.js' ./tests/tester.js --state --dist",
     "docs:build": "typedoc --options typedoc.js",
     "test:state": "ts-node ./tests/tester --state",
-    "test:state:allForks": "echo {'Homestead','TangerineWhistle','SpuriousDragon','Byzantium','Constantinople','Petersburg','Istanbul','MuirGlacier'} | xargs -n1 | xargs -I v1 npm run test:state -- --fork=v1",
-    "test:state:selectedForks": "echo {'Homestead','TangerineWhistle','SpuriousDragon','Petersburg',} | xargs -n1 | xargs -I v1 npm run test:state -- --fork=v1",
+    "test:state:allForks": "echo 'Homestead TangerineWhistle SpuriousDragon Byzantium Constantinople Petersburg Istanbul MuirGlacier' | xargs -n1 | xargs -I v1 npm run test:state -- --fork=v1",
+    "test:state:selectedForks": "echo 'Homestead TangerineWhistle SpuriousDragon Petersburg' | xargs -n1 | xargs -I v1 npm run test:state -- --fork=v1",
     "test:state:slow": "npm run test:state -- --runSkipped=slow",
     "test:buildIntegrity": "npm run test:state -- --test='stackOverflow'",
     "test:blockchain": "node -r ts-node/register --stack-size=1500 ./tests/tester --blockchain",
-    "test:blockchain:allForks": "echo {'Homestead','TangerineWhistle','SpuriousDragon','Byzantium','Constantinople','Petersburg','Istanbul','MuirGlacier'} | xargs -n1 | xargs -I v1 node -r ts-node/register --stack-size=1500 ./tests/tester --blockchain --fork=v1",
+    "test:blockchain:allForks": "echo 'Homestead TangerineWhistle SpuriousDragon Byzantium Constantinople Petersburg Istanbul MuirGlacier' | xargs -n1 | xargs -I v1 node -r ts-node/register --stack-size=1500 ./tests/tester --blockchain --fork=v1",
     "test:API": "tape -r ts-node/register --stack-size=1500 ./tests/api/**/*.js",
     "test:API:browser": "npm run build && karma start karma.conf.js",
     "test": "echo \"[INFO] Generic test cmd not used. See package.json for more specific test run cmds.\"",