diff --git a/Dockerfile b/Dockerfile
index 749288f..44f358e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM balena/open-balena-base:18.0.20
+FROM balena/open-balena-base:18.0.21
 
 ENV NGINX_VERSION 1.24.0-1~bookworm