diff --git a/requirements.txt b/requirements.txt
index e4acb0c..a16e1df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,6 @@ Click==7.0
 configparser==4.0.2
 cryptography==2.3
 decorator==4.4.0
-defer==1.0.6
 distro==1.3.0
 distro-info===0.21ubuntu2
 entrypoints==0.3