diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7ec1832..eb4a2c2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,6 +2,9 @@ stages:
     - build
     - flash
 
+cache:
+    paths:
+        - build/
 build:
     stage: build