diff --git a/docs/Dockerfile b/docs/Dockerfile
index 1a6436b08a2..597e1b1f145 100644
--- a/docs/Dockerfile
+++ b/docs/Dockerfile
@@ -1,5 +1,5 @@
 # v9.1.18
-FROM squidfunk/mkdocs-material@sha256:cbfecae461533759a5b376ef7ee3ee65cf328536261d28ae35df944c96e06867
+FROM squidfunk/mkdocs-material@sha256:a4cfa88f5db3f6cdc9d97966d60a1003b19c351c603e966500cf30053193ea97
 # pip-compile --generate-hashes --output-file=requirements.txt requirements.in
 COPY requirements.txt /tmp/
 RUN pip install --require-hashes -r /tmp/requirements.txt