diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 72ac067..b466f9b 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -11,6 +11,12 @@ updates:
     groups:
       python-minor-and-patch:
         update-types: ["minor", "patch"]
+    ignore:
+      # grpcio-tools stamps its own grpcio/protobuf versions into the committed
+      # stubs in src/openshell/_proto, which tightens the runtime requirements.
+      # Hold it until the floors are raised deliberately in 0.2.0.
+      # See https://github.com/ai-openshell/sdk-python/issues/24
+      - dependency-name: "grpcio-tools"
 
   - package-ecosystem: "github-actions"
     directory: "/"