diff --git a/requirements/requirements-dev.txt b/requirements/requirements-dev.txt
index 7253bc67a..2f1144feb 100644
--- a/requirements/requirements-dev.txt
+++ b/requirements/requirements-dev.txt
@@ -220,7 +220,7 @@ typing-extensions==4.8.0
     # via
     #   -r requirements.txt
     #   rich
-ujson==5.8.0
+ujson==5.9.0
     # via -r requirements.txt
 urllib3==2.1.0
     # via
diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index 7dfaf852d..74ca01cd1 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -93,7 +93,7 @@ typing-extensions==4.8.0
     # via
     #   -r requirements.in
     #   rich
-ujson==5.8.0
+ujson==5.9.0
     # via -r requirements.in
 watchfiles==0.21.0
     # via -r requirements.in