diff --git a/action.yaml b/action.yaml
index edeb0c5..5fdc469 100644
--- a/action.yaml
+++ b/action.yaml
@@ -5,12 +5,12 @@ inputs:
   registry:
     description: "Server address of Docker registry."
     default: gitea.okami101.io
-  username:
-    description: "Username used to log against the Docker registry"
-    required: true
-  password:
-    description: "Password or personal access token used to log against the Docker registry"
-    required: true
+  # username:
+  #   description: "Username used to log against the Docker registry"
+  #   required: true
+  # password:
+  #   description: "Password or personal access token used to log against the Docker registry"
+  #   required: true
 
 runs:
   using: composite
@@ -22,8 +22,8 @@ runs:
     - uses: docker/login-action@v3
       with:
         registry: ${{ inputs.registry }}
-        username: ${{ inputs.username }}
-        password: ${{ inputs.password }}
+        username: ${{ vars.CONTAINER_REGISTRY_USERNAME }}
+        password: ${{ secrets.CONTAINER_REGISTRY_PASSWORD }}
     - uses: docker/build-push-action@v6
       with:
         context: .