diff --git a/requirements.txt b/requirements.txt
index 465dd62..10f488c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ nose==1.3.7
 requests==2.21.0
 coverage==4.5.4
 pook==1.0.1
-setuptools==49.6.0
+setuptools==43.0.0