diff --git a/requirements.txt b/requirements.txt
index a71a68e..b423f95 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-tornado==6.5.1
+tornado==6.4.2
 isodate==0.7.2
-pytest==8.4.0
+pytest==8.3.5
 schwifty==2025.1.0
 Cerberus==1.3.7
 validator-collection==1.5.0