diff --git a/2026-RIKEN/docker/Dockerfile.benchpark b/2026-RIKEN/docker/Dockerfile.benchpark
index 26cb89c..5f94741 100644
--- a/2026-RIKEN/docker/Dockerfile.benchpark
+++ b/2026-RIKEN/docker/Dockerfile.benchpark
@@ -32,7 +32,7 @@ USER ${NB_USER}
 
 RUN git clone https://github.com/LLNL/benchpark.git ${HOME}/benchpark && \
     cd ${HOME}/benchpark && \
-    git checkout -b develop-2025-12-14 develop-2025-12-14 && \
+    git checkout -b develop-2025-12-15 develop-2025-12-15 && \
     git submodule update --init --recursive
 
 USER root