diff --git a/.ci/docker-ci/debian-gnupg1/Dockerfile b/.ci/docker-ci/debian-gnupg1/Dockerfile
index 558d382e..78d2665c 100644
--- a/.ci/docker-ci/debian-gnupg1/Dockerfile
+++ b/.ci/docker-ci/debian-gnupg1/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:13.4-slim
+FROM debian:13.5-slim
 
 LABEL maintainer="mail@sobolevn.me"
 LABEL vendor="git-secret team"