diff --git a/security-gateway/uaa/Dockerfile b/security-gateway/uaa/Dockerfile
index 1c635e8..742c314 100644
--- a/security-gateway/uaa/Dockerfile
+++ b/security-gateway/uaa/Dockerfile
@@ -1,4 +1,4 @@
-FROM tomcat:9.0.21-jdk8-adoptopenjdk-hotspot
+FROM tomcat:9.0.52-jdk8-adoptopenjdk-hotspot
 RUN apt-get update \
     && apt-get -y install --no-install-recommends wget \
     && rm -rf /var/lib/apt/lists/*