diff --git a/runtime/base/base.Dockerfile b/runtime/base/base.Dockerfile
index 7cccb2f2c..b04bd510f 100644
--- a/runtime/base/base.Dockerfile
+++ b/runtime/base/base.Dockerfile
@@ -374,7 +374,7 @@ RUN set -xe; \
 #   - OpenSSL
 # Needed by:
 #   - php
-ENV VERSION_POSTGRES=15.4
+ENV VERSION_POSTGRES=15.5
 ENV POSTGRES_BUILD_DIR=${BUILD_DIR}/postgres
 
 RUN set -xe; \