diff --git a/plans/matrix.fmf b/plans/matrix.fmf
index 85887f0..1cbe89c 100644
--- a/plans/matrix.fmf
+++ b/plans/matrix.fmf
@@ -6,7 +6,8 @@ execute:
   how: tmt
 
 environment:
-  MAVEN_IT_GIT_REF: maven-3.9.x
+  # branch maven-3.9.x
+  MAVEN_IT_GIT_REF: e3f9b7c9671cdd67bffe5c2d2663b2d92f05441c
 
 /jdk21:
   environment+: