diff --git a/tests/UDKTests/requirements.txt b/tests/UDKTests/requirements.txt
index d0880de..caad595 100644
--- a/tests/UDKTests/requirements.txt
+++ b/tests/UDKTests/requirements.txt
@@ -1,6 +1,6 @@
 httpx==0.25.0
 psutil==6.0.0
-py7zr==0.20.6
+py7zr==0.21.1
 tqdm==4.66.4
 udk_configparser==1.1.1
 watchdog==3.0.0