diff --git a/dev-requirements.txt b/dev-requirements.txt
index bc2b6c9..00c1b18 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,7 +1,7 @@
 jdatetime==5.2.0
 hijridate==2.5.0
 setuptools>=40.8.0
-vulture>=1.0
+vulture>=2.16
 bandit>=1.5.1
 pydocstyle>=3.0.0
 pytest>=4.3.1