diff --git a/.github/workflows/benchmark.yaml b/.github/workflows/benchmark.yml
similarity index 93%
rename from .github/workflows/benchmark.yaml
rename to .github/workflows/benchmark.yml
index bad1b83db8d9..05f78cc2edac 100644
--- a/.github/workflows/benchmark.yaml
+++ b/.github/workflows/benchmark.yml
@@ -3,10 +3,10 @@ name: Benchmark
 on:
   pull_request:
     paths:
-      - "polars/**"
-      - "Cargo.toml"
-      - "py-polars/tests/benchmark/**"
-      - ".github/workflows/benchmark.yaml"
+      - polars/**
+      - Cargo.toml
+      - py-polars/tests/benchmark/**
+      - .github/workflows/benchmark.yml
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -40,7 +40,7 @@ jobs:
       - name: Set up R
         uses: r-lib/actions/setup-r@v2
         with:
-          r-version: "3.5.3"
+          r-version: '3.5.3'
 
       - name: Generate data
         working-directory: py-polars/tests/benchmark
diff --git a/.github/workflows/build-test-rust.yaml b/.github/workflows/build-test-rust.yml
similarity index 97%
rename from .github/workflows/build-test-rust.yaml
rename to .github/workflows/build-test-rust.yml
index 9bebf3fda72d..de97c7d4115e 100644
--- a/.github/workflows/build-test-rust.yaml
+++ b/.github/workflows/build-test-rust.yml
@@ -3,8 +3,8 @@ name: Build and test Rust
 on:
   pull_request:
     paths:
-      - 'polars/**'
-      - '.github/workflows/build-test-rust.yaml'
+      - polars/**
+      - .github/workflows/build-test-rust.yml
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
diff --git a/.github/workflows/create-python-release.yaml b/.github/workflows/create-python-release.yml
similarity index 100%
rename from .github/workflows/create-python-release.yaml
rename to .github/workflows/create-python-release.yml
diff --git a/.github/workflows/lint-global.yaml b/.github/workflows/lint-global.yml
similarity index 86%
rename from .github/workflows/lint-global.yaml
rename to .github/workflows/lint-global.yml
index fa5d24223323..ecd380d80ef4 100644
--- a/.github/workflows/lint-global.yaml
+++ b/.github/workflows/lint-global.yml
@@ -5,7 +5,7 @@ on:
     paths:
       - '**.md'
       - '**.toml'
-      - '.github/workflows/lint-global.yaml'
+      - .github/workflows/lint-global.yml
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
diff --git a/.github/workflows/lint-python.yaml b/.github/workflows/lint-python.yml
similarity index 92%
rename from .github/workflows/lint-python.yaml
rename to .github/workflows/lint-python.yml
index 47b0fb12ce23..1acff1eb2714 100644
--- a/.github/workflows/lint-python.yaml
+++ b/.github/workflows/lint-python.yml
@@ -3,8 +3,8 @@ name: Lint Python
 on:
   pull_request:
     paths:
-      - 'py-polars/**'
-      - '.github/workflows/lint-python.yaml'
+      - py-polars/**
+      - .github/workflows/lint-python.yml
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -24,8 +24,8 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: '3.11'
-          cache: 'pip'
-          cache-dependency-path: 'py-polars/requirements-lint.txt'
+          cache: pip
+          cache-dependency-path: py-polars/requirements-lint.txt
 
       - name: Install Python dependencies
         run: |
diff --git a/.github/workflows/test-python.yaml b/.github/workflows/test-python.yml
similarity index 94%
rename from .github/workflows/test-python.yaml
rename to .github/workflows/test-python.yml
index 1ced6c8d0ce4..410448eee412 100644
--- a/.github/workflows/test-python.yaml
+++ b/.github/workflows/test-python.yml
@@ -3,9 +3,9 @@ name: Test Python
 on:
   pull_request:
     paths:
-      - 'py-polars/**'
-      - 'polars/**'
-      - '.github/workflows/test-python.yaml'
+      - py-polars/**
+      - polars/**
+      - .github/workflows/test-python.yml
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -98,8 +98,8 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-          cache: 'pip'
-          cache-dependency-path: 'py-polars/requirements-dev.txt'
+          cache: pip
+          cache-dependency-path: py-polars/requirements-dev.txt
 
       - name: Install Python dependencies
         run: |
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 92726d2dfa3d..3459e277297e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -226,7 +226,7 @@ Start by bumping the version number in the source code:
 Directly after merging your pull request, release the new version:
 
 8. Go back to the [releases page](https://github.com/pola-rs/polars/releases) and click _Edit_ on the appropriate draft release.
-9. On the draft release page, click _Publish release_. This will create a new release and a new tag, which will trigger the GitHub Actions release workflow ([Python](https://github.com/pola-rs/polars/actions/workflows/create-python-release.yaml) / [Rust](https://github.com/pola-rs/polars/actions/workflows/release-rust.yaml)).
+9. On the draft release page, click _Publish release_. This will create a new release and a new tag, which will trigger the GitHub Actions release workflow ([Python](https://github.com/pola-rs/polars/actions/workflows/create-python-release.yml) / [Rust](https://github.com/pola-rs/polars/actions/workflows/release-rust.yml)).
 10. Wait for all release jobs to finish, then check [crates.io](https://crates.io/crates/polars)/[PyPI](https://pypi.org/project/polars/) to verify that the new Polars release is now available.
 
 ### Troubleshooting
diff --git a/py-polars/tests/README.md b/py-polars/tests/README.md
index 30286980ff19..8030f33ca280 100644
--- a/py-polars/tests/README.md
+++ b/py-polars/tests/README.md
@@ -103,7 +103,7 @@ The benchmark is somewhat cumbersome to run locally. You must first generate the
 
 Make sure to install a release build of Polars before running the benchmark to guarantee the best results.
 
-Refer to the [benchmark workflow](/.github/workflows/benchmark.yaml) for detailed steps.
+Refer to the [benchmark workflow](/.github/workflows/benchmark.yml) for detailed steps.
 
 ### Running other benchmark tests