diff --git a/.github/workflows/rust.yaml b/.github/workflows/rust.yaml
index b2c8be1..05ac9f0 100644
--- a/.github/workflows/rust.yaml
+++ b/.github/workflows/rust.yaml
@@ -2,7 +2,9 @@ name: Rust
 
 on:
   push:
-    branches: [main, Try]
+    branches: [main]
+    tags:
+    - v*
   pull_request:
     branches: [main]
 
diff --git a/Cargo.toml b/Cargo.toml
index 9cac7b4..df8c5bd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ name = "cfg-rs"
 readme = 'README.md'
 repository = 'https://github.com/leptonyu/cfg-rs'
 rust-version = "1.64.0"
-version = "0.3.0"
+version = "0.3.1"
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/src/value.rs b/src/value.rs
index 90b635d..6881f1a 100644
--- a/src/value.rs
+++ b/src/value.rs
@@ -240,7 +240,7 @@ impl<V: FromValue> FromConfig for V {
         match value {
             None => Err(context.not_found()),
             Some(ConfigValue::Str(v)) if v.is_empty() => Self::empty_value(context),
-            Some(ConfigValue::StrRef(v)) if v.is_empty() => Self::empty_value(context),
+            Some(ConfigValue::StrRef("")) => Self::empty_value(context),
             Some(val) => V::from_value(context, val),
         }
     }