diff --git a/mybinder/values.yaml b/mybinder/values.yaml
index bfa0f3f90..dbd5e3e90 100644
--- a/mybinder/values.yaml
+++ b/mybinder/values.yaml
@@ -225,7 +225,7 @@ binderhub:
             })();
           }
     KubernetesBuildExecutor:
-      build_image: quay.io/jupyterhub/repo2docker:2024.07.0-166.ge795060
+      build_image: quay.io/jupyterhub/repo2docker:2025.08.0
 
   extraConfig:
     # Send Events to StackDriver on Google Cloud