diff --git a/Dockerfile b/Dockerfile
index eba21a8..0c66a93 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM squidfunk/mkdocs-material:8.5.2
+FROM squidfunk/mkdocs-material:9.1.1
 
 # Build-time flags
 ARG BUILD_MODE=false