diff --git a/backend-tests/requirements-py3.txt b/backend-tests/requirements-py3.txt
index b17b4002d..a30347df8 100644
--- a/backend-tests/requirements-py3.txt
+++ b/backend-tests/requirements-py3.txt
@@ -4,7 +4,7 @@ cffi==1.14.5
 chardet==4.0.0
 cryptography==3.4.7
 docker==5.0.0
-idna==2.10
+idna==3.4
 iniconfig==1.1.1
 packaging==21.0
 Pillow==8.3.0