diff --git a/pyproject.toml b/pyproject.toml
index 62b1c058..c7786925 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,7 @@ dynamic = ["version"]
 
 [project.optional-dependencies]
 tests = [
-    "approvaltests~=9.0",
+    "approvaltests~=10.0",
     "flake8~=6.0",
     "pylint~=2.12",
     "pytest~=7.2",