diff --git a/package.json b/package.json
index bdd4f6b5af051ed7a8be04afc5665495e59a0448..7e6fdd4bad8c6d6fb12a0465e6626fdc8d4a1661 100644
--- a/package.json
+++ b/package.json
@@ -83,13 +83,13 @@
     "redux-mock-store": "^1.2.3",
     "redux-throttle": "0.1.1",
     "rimraf": "^2.6.1",
-    "scratch-audio": "latest",
-    "scratch-blocks": "latest",
-    "scratch-l10n": "latest",
-    "scratch-paint": "latest",
-    "scratch-render": "latest",
-    "scratch-storage": "^0.3.0",
-    "scratch-vm": "latest",
+    "scratch-audio": "0.1.0-prerelease.1511362862",
+    "scratch-blocks": "0.1.0-prerelease.1513627896",
+    "scratch-l10n": "2.0.20171211145754",
+    "scratch-paint": "0.1.0-prerelease.20171215160852",
+    "scratch-render": "0.1.0-prerelease.1513022270",
+    "scratch-storage": "0.3.0",
+    "scratch-vm": "0.1.0-prerelease.1513627112-prerelease.1513627124",
     "selenium-webdriver": "3.5.0",
     "startaudiocontext": "1.2.1",
     "style-loader": "^0.19.0",