diff --git a/requirements.txt b/requirements.txt
index e02b468..5a5fe5a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ cfgv==3.4.0
 charset-normalizer==3.3.2
 click==8.1.7
 coloredlogs==15.0.1
-dill==0.3.8
+dill==0.3.9
 distlib==0.3.8
 filelock==3.16.1
 future==1.0.0