diff --git a/services/uka-webserver/Dockerfile b/services/uka-webserver/Dockerfile
index 6116c1f8c..eda1f1f08 100644
--- a/services/uka-webserver/Dockerfile
+++ b/services/uka-webserver/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:8.1-apache@sha256:72f0c0134922985022d55a39b0390d35dc7a10e961aa6c44fa35b4c3102f4268
+FROM php:8.5-apache@sha256:9d0144a8daeb9e1607c6d94350ff2415c1f620769e26f4d6b98d1b20405bf37f
 
 ENV APACHE_DOCUMENT_ROOT /project/uka/web/public