diff --git a/ci/build-linux.yml b/ci/build-linux.yml
index 6a5f38c..2b5410a 100644
--- a/ci/build-linux.yml
+++ b/ci/build-linux.yml
@@ -4,8 +4,13 @@ image_resource:
   type: registry-image
   source: {repository: rust}
 
+# move cargo's config directory to be ./.cargo-config/ and cache it
+params:
+  CARGO_HOME: "./.cargo-config"
+
 caches:
-- path: "./target/"
+  - path: "./target"
+  - path: "./.cargo-config"
 
 inputs:
 - name: repo