diff --git a/Dockerfile b/Dockerfile
index de6c806..66f003b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -37,8 +37,8 @@ RUN bundle exec bootsnap precompile app/ lib/
 # Work around a bug in SASSC https://github.com/sass/sassc-ruby/issues/146
 ENV BUNDLE_BUILD__SASSC=--disable-march-tune-native
 
-RUN RAILS_ENV=production BUILD_STAGE=docker SECRET_KEY_BASE_DUMMY=1 ./bin/rails tailwindcss:build
-RUN RAILS_ENV=production BUILD_STAGE=docker SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
+RUN RAILS_ENV=production BUILD_STAGE=docker SECRET_KEY_BASE=1 ./bin/rails tailwindcss:build
+RUN RAILS_ENV=production BUILD_STAGE=docker SECRET_KEY_BASE=1 ./bin/rails assets:precompile
 
 
 # Final stage for app image