diff --git a/requirements-dev.txt b/requirements-dev.txt
index 92446ec..ff5999d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,7 +3,7 @@ flake8-annotations~=3.2.0
 flake8-bugbear~=25.11.29
 flake8-docstrings~=1.7.0
 flake8-import-order~=0.19.0
-flake8-string-format~=0.3.0
+flake8-string-format~=0.4.0
 flake8-tidy-imports~=4.12.0
 flake8-todo~=0.7
 pep8-naming~=0.15.1