diff --git a/requirements.txt b/requirements.txt
index ddadeb9..f3ebb48 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alphalens-reloaded==0.4.3
 arch==6.2.0
 bcolz-zipline @ git+https://github.com/stefan-jansen/bcolz-zipline.git@main
-black==23.12.0
+black==23.12.1
 bottleneck==1.3.7
 dask==2023.12.1
 exchange_calendars==4.5