diff --git a/.github/workflows/docker.yaml b/.github/workflows/docker.yaml
index 5d5598b..64c8870 100644
--- a/.github/workflows/docker.yaml
+++ b/.github/workflows/docker.yaml
@@ -33,6 +33,11 @@ on:
           type=semver,pattern={{major}}.{{minor}}
           type=sha
           type=sha,format=long
+      build_args:
+        required: false
+        type: string
+        default: ""
+        description: "Extra --build-arg values, one KEY=VALUE per line"
 
 jobs:
   build:
@@ -72,3 +77,4 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           annotations: ${{ steps.meta.outputs.annotations }}
+          build-args: ${{ inputs.build_args }}