diff --git a/Dockerfile b/Dockerfile
index a24cb0d..20cd801 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,6 +3,8 @@ FROM golang:1.26
 WORKDIR /src
 COPY . .
 
-RUN go get -u github.com/sethvargo/go-githubactions/... && go build -o /bin/google-chat-action
+RUN go get -u github.com/sethvargo/go-githubactions/... \
+    && go mod tidy \
+    && go build -o /bin/google-chat-action
 
 ENTRYPOINT ["/bin/google-chat-action"]