diff --git a/pyproject.toml b/pyproject.toml
index ff029357..cac02ccb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,7 +53,7 @@ optional-dependencies.dev = [
     "check-manifest==0.50",
     "check-wheel-contents==0.6.3",
     "deptry==0.23.1",
-    "dirty-equals==0.9.0",
+    "dirty-equals==0.10.0",
     "doc8==1.1.1",
     "doccmd==2025.9.19",
     "docformatter==1.7.7",