diff --git a/Dockerfile b/Dockerfile
index 16bec3a..275ae3c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM bitnami/jsonnet:0.18.0 as jsonnet
 FROM golangci/golangci-lint:v1.50.0 as golangci-lint
-FROM ruby:3.1-alpine
+FROM ruby:3.4-alpine
 
 COPY --from=jsonnet /opt/bitnami/jsonnet/bin/jsonnetfmt /usr/local/bin
 COPY --from=golangci-lint /usr/bin/golangci-lint /usr/local/bin