diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 6e0c05e..ae582bf 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -23,6 +23,8 @@ Changed
 
     Contributed by @lopf
 
+* Pinned coffeescript version to 1.12.7
+
 * Removed EL7 and bionic
     Contributed by @amanda11
 
diff --git a/package.json b/package.json
index 0ad8d6d..b0b8850 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "botbuilder": "^3.30.0",
     "coffee-register": "1.0.0",
     "coffee-script": "1.12.7",
+    "coffeescript": "1.12.7",
     "hubot": "^3.5.0",
     "hubot-botframework": "git+https://github.com/microsoft/BotFramework-Hubot.git#01d5be9",
     "hubot-diagnostics": "0.0.2",