diff --git a/pyproject.toml b/pyproject.toml
index 7c44e907..086dd9c2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ dependencies = [
   "pydantic>=2.10.6",
   "types-pyyaml>=6.0.12.20241230",
   "pyyaml>=6.0.2",
-  "ruamel.yaml>=0.18.0",
+  "ruamel.yaml==0.18.14",
   "jinja2>=3.1.6",
   "dotenv>=0.9.9",
   "pathspec>=0.12.1",
diff --git a/uv.lock b/uv.lock
index 19393a69..e8083592 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2014,7 +2014,7 @@ requires-dist = [
     { name = "python-dotenv", specifier = ">=1.0.0,<2" },
     { name = "pyyaml", specifier = ">=6.0.2" },
     { name = "requests", specifier = ">=2.32.3,<3" },
-    { name = "ruamel-yaml", specifier = ">=0.18.0" },
+    { name = "ruamel-yaml", specifier = "==0.18.14" },
     { name = "ruff", marker = "extra == 'dev'", specifier = ">=0.0.285" },
     { name = "sensai-utils", specifier = ">=1.5.0" },
     { name = "sphinx", marker = "extra == 'dev'", specifier = ">=7,<8" },