diff --git a/.github/dependabot.yaml b/.github/dependabot.yaml
index 5990d9c..8a7b17a 100644
--- a/.github/dependabot.yaml
+++ b/.github/dependabot.yaml
@@ -5,7 +5,8 @@
 
 version: 2
 updates:
-  - package-ecosystem: "" # See documentation for possible values
-    directory: "/" # Location of package manifests
+  - package-ecosystem: "docker" # See documentation for possible values
+    # Look for a `Dockerfile` in the `root` directory
+    directory: "/"
     schedule:
       interval: "weekly"