Index: debian-analyzer/Cargo.toml
===================================================================
--- debian-analyzer.orig/Cargo.toml
+++ debian-analyzer/Cargo.toml
@@ -187,7 +187,7 @@ version = "0.22"
 version = "2.4"
 
 [dev-dependencies.serial_test]
-version = ">=3, <4"
+version = ">=2, <4"
 
 [build-dependencies.quote]
 version = "1.0.40"
