diff --git a/Dockerfile.fly b/Dockerfile.fly
index 62c2fb8..ba9e6da 100644
--- a/Dockerfile.fly
+++ b/Dockerfile.fly
@@ -1,5 +1,4 @@
-ARG RUBY_VERSION=3.3.0-jemalloc
-FROM quay.io/evl.ms/fullstaq-ruby:${RUBY_VERSION}-slim
+FROM ruby:3.3.0-slim
 ADD . /src
 WORKDIR /src