diff --git a/CHANGES_NEXT_RELEASE b/CHANGES_NEXT_RELEASE
index 8b1378917..7112c6dfe 100644
--- a/CHANGES_NEXT_RELEASE
+++ b/CHANGES_NEXT_RELEASE
@@ -1 +1 @@
-
+- [cygnus-ngsi] Upgrade Debian version from 12.5 to 12.6 in Dockerfile
diff --git a/docker/cygnus-ngsi/Dockerfile b/docker/cygnus-ngsi/Dockerfile
index df72dc740..1b40ebd3c 100644
--- a/docker/cygnus-ngsi/Dockerfile
+++ b/docker/cygnus-ngsi/Dockerfile
@@ -16,7 +16,7 @@
 # For those usages not covered by the GNU Affero General Public License please contact with iot_support at tid dot es
 #
 
-FROM debian:12.5-slim
+FROM debian:12.6-slim
 ARG GITHUB_ACCOUNT=telefonicaid
 ARG GITHUB_REPOSITORY=fiware-cygnus