diff --git a/.gitea/workflows/build-image.yml b/.gitea/workflows/build-image.yml
index 60305d7..77a4f14 100644
--- a/.gitea/workflows/build-image.yml
+++ b/.gitea/workflows/build-image.yml
@@ -25,7 +25,7 @@ jobs:
       - name: Setup pandoc
         uses: https://github.com/r-lib/actions/setup-pandoc@v1
         with:
-          pandoc-version: '3.4'
+          pandoc-version: '3.5'
 
       - name: Build presentation main
         run: pandoc -t revealjs --resource-path=.:presentation/src/ -s presentation/src/index.md -o presentation/src/index.html
@@ -33,6 +33,9 @@ jobs:
       - name: Build presentation essaimage
         run: pandoc -t revealjs --resource-path=.:presentation/src/ -s presentation/src/essaimage.md -o presentation/src/essaimage.html
 
+      - name: Build presentation formation-signature
+        run: pandoc --from markdown+emoji -t revealjs --resource-path=.:presentation/src/ -s presentation/src/formation-signature.md -o presentation/src/formation-signature.html
+
       - name: Set up Docker Buildx
         uses: https://github.com/docker/setup-buildx-action@v3