diff --git a/docker-compose.yml b/docker-compose.yml
index c3d7ba4..58f6789 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -18,7 +18,7 @@ services:
     build:
       context: validator
       args:
-        UPSTREAM_VERSION: 26.4.0
+        UPSTREAM_VERSION: 26.9.1
         STAKER_SCRIPTS_VERSION: v0.1.2
         DATA_DIR: /opt/teku/data
     environment: