diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index eff759f..349f69d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,10 @@
 name: Build and Lint
 on: [push]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 # Make sure CI fails on all warnings, including Clippy lints
 env:
   RUSTFLAGS: "-D warnings"
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index fc84ded..1548123 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -5,6 +5,10 @@ on:
     tags:
       - '*.*.*'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   CARGO_INCREMENTAL: 0
   CARGO_NET_RETRY: 10
@@ -18,6 +22,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Rustfmt
+        run: cargo fmt -- --check
       - name: Clippy
         run: cargo clippy --all-targets --all-features
       - name: Build
diff --git a/src/changelog.rs b/src/changelog.rs
index 57f37c5..20844f8 100644
--- a/src/changelog.rs
+++ b/src/changelog.rs
@@ -136,7 +136,11 @@ impl Changelog {
     }
 
     pub fn save_to_file(&self, path: &str) -> Result<()> {
-        let mut file = OpenOptions::new().write(true).create(true).open(path)?;
+        let mut file = OpenOptions::new()
+            .write(true)
+            .create(true)
+            .truncate(true)
+            .open(path)?;
         file.write_all(self.to_string().as_bytes())?;
         file.flush()?;
         Ok(())