diff --git a/pyproject.toml b/pyproject.toml
index 575c0d524..530f6eee1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ classifiers = [
 requires-python = ">=3.9"
 dependencies = [
     'tomli>=2.0;python_version<"3.11"',
-    "ruamel.yaml==0.18.6",
+    "ruamel.yaml==0.18.7",
     "jsonschema>=4.18.0,<5.0",
     "regress>=0.4.0",
     "requests<3.0",