diff --git a/crates/trusted-server-integration-tests/fixtures/frameworks/wordpress/Dockerfile b/crates/trusted-server-integration-tests/fixtures/frameworks/wordpress/Dockerfile
index 513b7a8e5d..9585a496a8 100644
--- a/crates/trusted-server-integration-tests/fixtures/frameworks/wordpress/Dockerfile
+++ b/crates/trusted-server-integration-tests/fixtures/frameworks/wordpress/Dockerfile
@@ -9,7 +9,7 @@
 # Run manually:
 #   docker run -p 8080:80 test-wordpress:latest
 
-FROM php:8.3-cli-alpine
+FROM php:8.3.36-cli-alpine3.23
 
 WORKDIR /var/www/html