diff --git a/python/requirements.txt b/python/requirements.txt
index c84497bdd..13686d2e8 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -22,7 +22,7 @@
 
 websockets==10.3
 pyright==1.1.331
-black==24.4.2
+black==26.3.1
 flake8==6.1.0
 sphinx-bluebrain-theme==0.4.2
 sphinx-jsonschema==1.19.1