diff --git a/radicale-ldap/Dockerfile b/radicale-ldap/Dockerfile
index d7d4dd1..b800d26 100644
--- a/radicale-ldap/Dockerfile
+++ b/radicale-ldap/Dockerfile
@@ -1,2 +1,2 @@
-FROM tomsquest/docker-radicale:3.3.0.0
+FROM tomsquest/docker-radicale:3.5.2.0
 RUN . /venv/bin/activate && python3 -m pip install ldap3
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