diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4a542805f..21f53f4cf 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -17,7 +17,7 @@ executors:
     parameters:
       packer-version:
         type: string
-        default: 1.8.1
+        default: "1.8"
     docker:
       - image: hashicorp/packer:<< parameters.packer-version >>