diff --git a/action.yml b/action.yml
index d5ad08f..8971064 100644
--- a/action.yml
+++ b/action.yml
@@ -12,8 +12,8 @@ runs:
   using: docker
   image: Dockerfile
   args:
-    - ${{ inputs.args }}
-    - ${{ inputs.extra_system_packages }}
+    - "${{ inputs.args }}"
+    - "${{ inputs.extra_system_packages }}"
 branding:
   icon: book
   color: red