diff --git a/Dockerfile b/Dockerfile
index af0b3d93..c190636c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ RUN pip install --no-cache-dir --upgrade pip && \
 
 FROM python:3.13-slim
 
-ARG VERSION="v2.5.5"
+ARG VERSION="v2.5.6"
 ARG BUILD_DATE
 ARG VCS_REF