Pin to specific version

Author: jonrohan

lerna.json

@@ -1,5 +1,5 @@
 {
-  "lerna": "2.7.0",
+  "lerna": "2.4.0",
   "packages": [
     "modules/*",
     "tools/*"

package.json

@@ -36,7 +36,7 @@
     "globby": "^6.1.0",
     "html-to-react": "^1.2.11",
     "isomorphic-fetch": "^2.2.1",
-    "lerna": "^2.7.0",
+    "lerna": "2.4.0",
     "lerna-changelog": "^0.7.0",
     "node-sass": "^4.5.3",
     "npm-run-all": "^4.0.2",