diff --git a/requirements/dev.txt b/requirements/dev.txt
index dc8fe10..568e61e 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -8,4 +8,4 @@ pytest-cov==4.1.0
 pytest==7.4.3
 tox==4.11.4
 types-aiofiles==23.2.0.0
-types-ujson==5.8.0.1
\ No newline at end of file
+types-ujson==5.9.0.0
\ No newline at end of file