diff --git a/fireconfig/env.py b/fireconfig/env.py
index 9d20d80..16125ac 100644
--- a/fireconfig/env.py
+++ b/fireconfig/env.py
@@ -17,6 +17,10 @@ def with_field_ref(self, name: str, field: DownwardAPIField, key: T.Optional[str
         self._env[name] = ("valueFrom", {"fieldRef": {"fieldPath": field_str}})
         return self
 
+    def with_secret(self, name: str, secret_name: str, secret_key_name: str) -> T.Self:
+        self._env[name] = ("valueFrom", {"secretKeyRef": {"name": secret_name, "key": secret_key_name}})
+        return self
+
     def build(self, names: T.Optional[T.Union[T.Sequence[str], T.KeysView[str]]] = None) -> T.Sequence[T.Mapping]:
         if names is None:
             names = self._env.keys()
diff --git a/pyproject.toml b/pyproject.toml
index 39bec30..f25b6a2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "fireconfig"
-version = "0.5.0"
+version = "0.5.1"
 description = "Configuration language for Kubernetes manifests"
 authors = ["David Morrison <drmorr@appliedcomputing.io>"]
 license = "MIT"