diff --git a/9.10/bookworm/Dockerfile b/9.10/bookworm/Dockerfile
index cf93aad..8477a76 100644
--- a/9.10/bookworm/Dockerfile
+++ b/9.10/bookworm/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:bookworm@sha256:ed4fcc40bb1162b6d2d32e7bec15044d13963779abbe63f67f1cd62b06220519
+FROM debian:bookworm-20260518@sha256:ed4fcc40bb1162b6d2d32e7bec15044d13963779abbe63f67f1cd62b06220519
 
 ENV LANG=C.UTF-8
 
diff --git a/9.12/bookworm/Dockerfile b/9.12/bookworm/Dockerfile
index 777c924..b5f5108 100644
--- a/9.12/bookworm/Dockerfile
+++ b/9.12/bookworm/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:bookworm@sha256:ed4fcc40bb1162b6d2d32e7bec15044d13963779abbe63f67f1cd62b06220519
+FROM debian:bookworm-20260518@sha256:ed4fcc40bb1162b6d2d32e7bec15044d13963779abbe63f67f1cd62b06220519
 
 ENV LANG=C.UTF-8
 
diff --git a/9.14/bookworm/Dockerfile b/9.14/bookworm/Dockerfile
index 18d13fa..a49fe03 100644
--- a/9.14/bookworm/Dockerfile
+++ b/9.14/bookworm/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:bookworm@sha256:ed4fcc40bb1162b6d2d32e7bec15044d13963779abbe63f67f1cd62b06220519
+FROM debian:bookworm-20260518@sha256:ed4fcc40bb1162b6d2d32e7bec15044d13963779abbe63f67f1cd62b06220519
 
 ENV LANG=C.UTF-8