diff --git a/.ruby-version b/.ruby-version
index 2c9b4ef42..37c2961c2 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.7.3
+2.7.2
diff --git a/Dockerfile b/Dockerfile
index ee0fc6e69..962e5a8c9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,7 +26,7 @@ RUN ARCH= && \
 	mv node-v$NODE_VER-linux-$ARCH /opt/node
 
 # Install Ruby
-ENV RUBY_VER="2.7.3"
+ENV RUBY_VER="2.7.2"
 RUN apt-get update && \
   apt-get install -y --no-install-recommends build-essential \
     bison libyaml-dev libgdbm-dev libreadline-dev libjemalloc-dev \