diff --git a/.github/build.Dockerfile b/.github/build.Dockerfile
index d353717..6d7df1c 100644
--- a/.github/build.Dockerfile
+++ b/.github/build.Dockerfile
@@ -1,4 +1,4 @@
-FROM nvidia/cuda:12.9.1-cudnn-devel-ubuntu24.04
+FROM nvidia/cuda:13.3.1-cudnn-devel-ubuntu24.04@sha256:4d1953dba131182cfd732ced5c1025c770e6e298952e001aff5cadbc082069fc
 
 RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections