diff --git a/requirements.txt b/requirements.txt
index 3ca81c30e..7ce1f3794 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ attrs==21.2.0
 awesomeversion==21.6.0
 brotlipy==0.7.0
 cchardet==2.1.7
-ciso8601==2.1.3
+ciso8601==2.2.0
 colorlog==5.0.1
 cpe==1.2.1
 cryptography==3.4.6