diff --git a/debian/requirements.txt b/debian/requirements.txt
index 774b646..6fcff55 100644
--- a/debian/requirements.txt
+++ b/debian/requirements.txt
@@ -4,7 +4,7 @@ black==22.10.0
 certifi==2022.9.24
 charset-normalizer==2.1.1
 click==8.1.3
-dill==0.3.6
+dill==0.3.9
 exceptiongroup==1.0.0rc9
 execnet==1.9.0
 greenlet==1.1.3.post0