diff --git a/.github/workflows/code_formatting.yml b/.github/workflows/code_formatting.yml
index 5cd7984f7a..9f30f048cf 100644
--- a/.github/workflows/code_formatting.yml
+++ b/.github/workflows/code_formatting.yml
@@ -18,13 +18,3 @@ jobs:
       run: source tools/ci.sh && ci_c_code_formatting_run
     - name: Check code formatting
       run: git diff --exit-code
-
-  code-spelling:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-python@v5
-    - name: Install packages
-      run: source tools/ci.sh && ci_code_spell_setup
-    - name: Run spell checker
-      run: source tools/ci.sh && ci_code_spell_run
diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
new file mode 100644
index 0000000000..47b12051e7
--- /dev/null
+++ b/.github/workflows/codespell.yml
@@ -0,0 +1,12 @@
+name: Check spelling with codespell
+
+on: [push, pull_request]
+
+jobs:
+  codespell:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - run: pip install --user codespell==2.2.6 tomli
+    - run: codespell
+
diff --git a/tools/ci.sh b/tools/ci.sh
index e18027ae5a..3cbc51cfad 100755
--- a/tools/ci.sh
+++ b/tools/ci.sh
@@ -30,17 +30,6 @@ function ci_c_code_formatting_run {
     tools/codeformat.py -v -c
 }
 
-########################################################################################
-# code spelling
-
-function ci_code_spell_setup {
-    pip3 install codespell tomli
-}
-
-function ci_code_spell_run {
-    codespell
-}
-
 ########################################################################################
 # commit formatting