diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index d198af4..7ee9edc 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -4,6 +4,9 @@ on:
   push:
     branches:
       - master
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_protected && github.run_id || github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
   deploy:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/security-audit.yml b/.github/workflows/security-audit.yml
index 26b4813..9897e8b 100644
--- a/.github/workflows/security-audit.yml
+++ b/.github/workflows/security-audit.yml
@@ -6,6 +6,9 @@ on:
       - '**/Cargo.lock'
   schedule:
     - cron: '5 4 * * 6'
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_protected && github.run_id || github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
   security_audit:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 82316d2..a56a9a2 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -2,7 +2,10 @@ name: tests & formatting
 on: 
   push:
   pull_request:
-    types: [opened]  
+    types: [opened]
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_protected && github.run_id || github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index 1b8f45b..6640677 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -3,14 +3,16 @@ on:
   push:
   pull_request:
     types: [opened]  
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref_protected && github.run_id || github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
   build:
     runs-on: windows-2022
     steps:
       - uses: actions/checkout@v4
-      - uses: actions-rs/toolchain@v1
+      - uses: dtolnay/rust-toolchain@stable
         with:
-          profile: minimal
           toolchain: stable
           components: rustfmt, clippy
       - run: cargo fmt -- --check && cargo clippy --all-features -- -Dwarnings && cargo test --all-features