diff --git a/docs/Dockerfile b/docs/Dockerfile
index dbb36341..6ece6786 100644
--- a/docs/Dockerfile
+++ b/docs/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.17.0
+FROM alpine:3.18.6
 
 RUN \
   apk --update add build-base git graphviz libffi-dev libxml2-dev libxslt-dev \