diff --git a/docker/Dockerfile b/docker/Dockerfile
index 25a6b76..ada8cbc 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,4 +1,4 @@
-ARG BASE_VERSION=v7.20.0
+ARG BASE_VERSION=v7.21.0
 FROM openapitools/openapi-generator-cli:${BASE_VERSION}
 
 ARG GENERATOR_DIR=/opt/openapi-generator/modules/openapi-generator-cli/target