diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 909d4fa1b..8e5fa3cdb 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -20,6 +20,13 @@ jobs:
       - name: Checkout sources
         uses: actions/checkout@v1
 
+      - name: Checkout powsybl-core branch
+        uses: actions/checkout@v4
+        with:
+          repository: powsybl/powsybl-core
+          ref: refs/heads/dynamic_simulation_fsv
+          path: powsybl-core
+
       - name: Set up JDK 17
         uses: actions/setup-java@v1
         with: