diff --git a/requirements-dev.txt b/requirements-dev.txt
index f29bb10..9536705 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 -r requirements.txt
 pre-commit~=3.7
 ruff~=0.4
-colorlog~=6.8
+colorlog~=6.9
 pvlib~=0.11
 matplotlib~=3.9
 ipykernel~=6.29