diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index ec97e294e..ed6570571 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -62,6 +62,14 @@ jobs:
       - name: Run sccache-cache
         uses: mozilla-actions/sccache-action@v0.0.9
 
+      - name: Install locales
+        shell: bash
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y locales
+          sudo locale-gen fr_FR.UTF-8
+          sudo update-locale
+
       - name: Install cargo-codspeed
         shell: bash
         run: cargo install cargo-codspeed --locked