diff --git a/.github/actions/install-external-tools/action.yml b/.github/actions/install-external-tools/action.yml
index 7da877f096..47472bfb85 100644
--- a/.github/actions/install-external-tools/action.yml
+++ b/.github/actions/install-external-tools/action.yml
@@ -23,7 +23,7 @@ runs:
       # up here.
     - run: ./.github/scripts/retry-command.sh go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
       shell: bash
-    - run: ./.github/scripts/retry-command.sh go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+    - run: ./.github/scripts/retry-command.sh go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.4.0
       shell: bash
     - run: ./.github/scripts/retry-command.sh go install github.com/favadi/protoc-go-inject-tag@latest
       shell: bash
diff --git a/tools/tools.sh b/tools/tools.sh
index cdfa6be73b..d42f8db4ee 100755
--- a/tools/tools.sh
+++ b/tools/tools.sh
@@ -34,7 +34,8 @@ check_tool() {
 install_external() {
   local tools
   # If you update this please update check_external below as well as our external tools
-  # install action ./github/actions/install-external-tools.yml
+  # install action .github/actions/install-external-tools/action.yml
+  #
   tools=(
     github.com/bufbuild/buf/cmd/buf@v1.25.0
     github.com/favadi/protoc-go-inject-tag@latest
@@ -43,7 +44,7 @@ install_external() {
     github.com/rinchsan/gosimports/cmd/gosimports@latest
     golang.org/x/tools/cmd/goimports@latest
     google.golang.org/protobuf/cmd/protoc-gen-go@latest
-    google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+    google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.4.0
     gotest.tools/gotestsum@latest
     honnef.co/go/tools/cmd/staticcheck@latest
     mvdan.cc/gofumpt@latest