diff --git a/pyproject.toml b/pyproject.toml
index e1d5395..d36da15 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ requires-python = ">=3.11"
 dependencies = [
     "fastapi>=0.115",
     "uvicorn[standard]>=0.34",
-    "pyyaml>=6.0",
+    "pyyaml>=6.0.3",
 ]
 
 [project.optional-dependencies]