diff --git a/ThirdParty/vtkdiff b/ThirdParty/vtkdiff
index a20c1bef6e35a5b53c101103820beca854934f37..9c6d1e0f3169169a0b50335b3e93e07b175b920d 160000
--- a/ThirdParty/vtkdiff
+++ b/ThirdParty/vtkdiff
@@ -1 +1 @@
-Subproject commit a20c1bef6e35a5b53c101103820beca854934f37
+Subproject commit 9c6d1e0f3169169a0b50335b3e93e07b175b920d