diff --git a/Makefile b/Makefile
index e21468d7f..730ac0cea 100644
--- a/Makefile
+++ b/Makefile
@@ -27,7 +27,7 @@ BUILD_TYPE ?= Debug
 PYTHON ?= python
 PYTHON3 ?= python3
 
-FORMAT ?= clang-format-8
+FORMAT ?= clang-format-9
 
 SETCAP ?= which setcap && setcap cap_net_admin,cap_net_bind_service=+eip