diff --git a/setup.py b/setup.py
index 1c314211..771081d0 100644
--- a/setup.py
+++ b/setup.py
@@ -29,7 +29,8 @@ INSTALL_REQUIRES = [
 	"pylru",
 	"rsa",
 	"pkginfo",
-	"requests"
+	"requests",
+	"semantic_version"
 ]
 
 # Additional requirements for optional install options