diff --git a/dev-requirements.txt b/dev-requirements.txt
index c275a72..3b3a1ec 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -1,4 +1,4 @@
-art==6.3
+art==6.4
 nava==0.7
 pytest>=4.3.1
 pytest-cov>=2.6.1