diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 26b6cc9..4ec74e7 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -15,7 +15,7 @@ dependencies = [
 
 [project.optional-dependencies]
 test = [
-    "pytest>=8.3,<9",
+    "pytest>=8.3,<10",
     "httpx>=0.27,<0.28",
 ]