diff --git a/Dockerfile b/Dockerfile
index 4d2db1c..869d4b4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,7 +28,7 @@ WORKDIR /app
 COPY --from=build /app /app
 COPY --from=build /usr/local/bundle /usr/local/bundle
 COPY --from=build /app/vendor/bundle /app/vendor/bundle
-RUN apk --no-cache add --virtual postgresql-dev postgresql-client tzdata
+RUN apk --no-cache add --virtual postgresql-dev postgresql-client tzdata bash
 ENV RAILS_ENV=production
 
 ARG REVISION