diff --git a/requirements_dev.txt b/requirements_dev.txt
index bbdb875..5464374 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 black==23.11.0
-blacken-docs==1.16.0
+blacken-docs==1.19.1
 coverage==7.3.2
 pre-commit==3.5.0
 pydocstyle==6.3.0