diff --git a/Dockerfile b/Dockerfile
index 4d2c7908..58e6444b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -82,7 +82,10 @@ RUN gem install rubocop:0.74.0 rubocop-rails rubocop-github:0.13.0
 
 # Need to fix the version as it installs 'rubocop:0.85.1' as a dep, and forces the default
 # We then need to promot the correct verion, uninstall, and fix deps
-RUN sh -c 'gem install --default rubocop:0.74.0;  yes | gem uninstall rubocop:0.85.1 -a -x -I; gem install rubocop:0.74.0'
+RUN sh -c 'INCORRECT_VERSION=$(gem list rhc -e rubocop | grep rubocop | awk "{print $2}" | cut -d"(" -f2 | cut -d"," -f1); \
+  gem install --default rubocop:0.74.0; \
+  yes | gem uninstall rubocop:$INCORRECT_VERSION -a -x -I; \
+  gem install rubocop:0.74.0'
 
 ######################
 # Install shellcheck #