diff --git a/build.sbt b/build.sbt
index e53d0ab..ad42081 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,7 +4,7 @@
 val Organization = "io.github.gitbucket"
 val Name = "gitbucket"
 val GitBucketVersion = "4.40.0-SNAPSHOT"
-val ScalatraVersion = "3.0.0-M3"
+val ScalatraVersion = "3.0.0-M4"
 val JettyVersion = "10.0.15"
 val JgitVersion = "6.5.0.202303070854-r"