diff --git a/submodules/gakumasu-diff b/submodules/gakumasu-diff
index be4e3b4..87149c3 160000
--- a/submodules/gakumasu-diff
+++ b/submodules/gakumasu-diff
@@ -1 +1 @@
-Subproject commit be4e3b469d75907dca969c8ac0a1a7cdcec55b76
+Subproject commit 87149c30789cc5c63a8acd8504cea5c7c7445151