diff --git a/Dev/Cpp/Effekseer/Effekseer/Material/Effekseer.MaterialFile.h b/Dev/Cpp/Effekseer/Effekseer/Material/Effekseer.MaterialFile.h
index 1efdf85331..59f67c18c0 100644
--- a/Dev/Cpp/Effekseer/Effekseer/Material/Effekseer.MaterialFile.h
+++ b/Dev/Cpp/Effekseer/Effekseer/Material/Effekseer.MaterialFile.h
@@ -66,7 +66,7 @@ class MaterialFile
 
 	std::vector<Uniform> uniforms_;
 
-	static const int32_t LatestSupportVersion = MaterialVersion17;
+	static const int32_t LatestSupportVersion = MaterialVersion18;
 	static const int32_t OldestSupportVersion = 0;
 
 public: