diff --git a/requirements.txt b/requirements.txt
index c117751..a0dfd76 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 certifi==2019.3.9
 chardet==3.0.4
 decorator==4.4.0
-idna==2.8
+idna==2.9
 neo4j==1.7.1
 neobolt==1.7.12
 neotime==1.7.4