diff --git a/.github/workflows/osrm-backend.yml b/.github/workflows/osrm-backend.yml
index d1a14d8a9..f338e05fb 100644
--- a/.github/workflows/osrm-backend.yml
+++ b/.github/workflows/osrm-backend.yml
@@ -88,7 +88,7 @@ jobs:
     - name: Prepare environment
       run: |
         npm ci --ignore-scripts
-        clang-format-14 --version
+        clang-format-15 --version
     - name: Run checks
       run: |
         ./scripts/check_taginfo.py taginfo.json profiles/car.lua
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5acca7957..c60375185 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,7 @@
       - REMOVED: Drop support of Node 12 & 14. [#6431](https://github.com/Project-OSRM/osrm-backend/pull/6431)
       - ADDED: Add 'load directly' mode to default Cucumber test suite. [#6663](https://github.com/Project-OSRM/osrm-backend/pull/6663)
       - CHANGED: Drop support for Node 16 [#6855](https://github.com/Project-OSRM/osrm-backend/pull/6855)
-      - CHANGED: Upgrade clang-format to version 14 [#6859](https://github.com/Project-OSRM/osrm-backend/pull/6859)
+      - CHANGED: Upgrade clang-format to version 15 [#6859](https://github.com/Project-OSRM/osrm-backend/pull/6859)
     - NodeJS:
       - CHANGED: Use node-api instead of NAN. [#6452](https://github.com/Project-OSRM/osrm-backend/pull/6452)
     - Misc:
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 2b36d2b6c..2b01a4a77 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -10,7 +10,7 @@ You can add a :+1: emoji reaction to the issue if you want to express interest i
 
 # Developer
 
-We use `clang-format` version `14` to consistently format the code base. There is a helper script under `scripts/format.sh`.
+We use `clang-format` version `15` to consistently format the code base. There is a helper script under `scripts/format.sh`.
 The format is automatically checked by the `mason-linux-release` job of a Travis CI build.
 To save development time a local hook `.git/hooks/pre-push`
 ```
diff --git a/scripts/format.sh b/scripts/format.sh
index 1a256d27e..93e6a50f9 100755
--- a/scripts/format.sh
+++ b/scripts/format.sh
@@ -19,18 +19,18 @@ elif [[ ${OS} = "Darwin" ]] ; then
 fi
 
 # Discover clang-format
-if type clang-format-14 2> /dev/null ; then
-    CLANG_FORMAT=clang-format-14
+if type clang-format-15 2> /dev/null ; then
+    CLANG_FORMAT=clang-format-15
 elif type clang-format 2> /dev/null ; then
     # Clang format found, but need to check version
     CLANG_FORMAT=clang-format
     V=$(clang-format --version)
-    if [[ $V != *14.0* ]] ; then
-        echo "clang-format is not 14.0 (returned ${V})"
+    if [[ $V != *15.0* ]] ; then
+        echo "clang-format is not 15.0 (returned ${V})"
         #exit 1
     fi
 else
-    echo "No appropriate clang-format found (expected clang-format-14, or clang-format)"
+    echo "No appropriate clang-format found (expected clang-format-15, or clang-format)"
     exit 1
 fi