diff --git a/circle.yml b/circle.yml
index 166e1bdb..bc11c6aa 100644
--- a/circle.yml
+++ b/circle.yml
@@ -14,6 +14,8 @@ machine:
     CLOUDSDK_CORE_DISABLE_PROMPTS: 1
 
 dependencies:
+  cache_directories:
+    - "~/docker"
   post:
     - "sudo apt-get update && sudo apt-get install bc jq"
     - curl https://sdk.cloud.google.com | bash