diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 56be41fc6..f7d7d0690 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -17,6 +17,8 @@ cache:
     - deps
     - _build
     - .rebar3
+    - ~/.mix
+    - ~/.hex
     - js/node_modules
 
 before_script: