diff --git a/Dockerfile b/Dockerfile
index 1aa4120..1bd0217 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -73,8 +73,11 @@ RUN rm -rf client/node_modules \
 # Pré-bundler la composition Remotion pendant le build (speedup au premier rendu)
 RUN node scripts/prebundle-remotion.js || true
 
-# S'assurer que le binaire browser de Remotion est téléchargé et disponible
-RUN npx remotion browser ensure
+# Vérifier que le binaire Chromium système est bien présent (utilisé à la place du binaire Remotion)
+# Note: npx remotion browser ensure télécharge un binaire glibc qui ne fonctionne pas sur Alpine (musl)
+RUN which chromium-browser && echo "✓ chromium-browser trouvé à $(which chromium-browser)" || \
+    (which chromium && echo "✓ chromium trouvé à $(which chromium)") || \
+    echo "⚠ Aucun chromium système trouvé — le rendu échouera"
 
 
 # Exposer le port de l'application
diff --git a/server/routes/remotion.ts b/server/routes/remotion.ts
index 87dfd1f..e91c02d 100644
--- a/server/routes/remotion.ts
+++ b/server/routes/remotion.ts
@@ -171,9 +171,10 @@ remotionRouter.post("/render", upload.array("images", 4), async (req, res) => {
 
     console.log("🎬 Rendering media...", effectiveDurationInFrames, "frames");
 
-    // Standard Chromium paths — Alpine installs at /usr/bin/chromium, Debian/Ubuntu at /usr/bin/chromium-browser
-    const chromiumPaths = ["/usr/bin/chromium", "/usr/bin/chromium-browser"];
+    // Standard Chromium paths — Alpine installs at /usr/bin/chromium-browser, Debian/Ubuntu may differ
+    const chromiumPaths = ["/usr/bin/chromium-browser", "/usr/bin/chromium"];
     const browserExecutable = chromiumPaths.find(p => fs.existsSync(p));
+    console.log("🌐 Browser executable:", browserExecutable ?? "remotion bundled (fallback)");
 
     await renderMedia({
       composition: { ...composition, durationInFrames: effectiveDurationInFrames },
@@ -184,7 +185,8 @@ remotionRouter.post("/render", upload.array("images", 4), async (req, res) => {
       browserExecutable,
       chromiumOptions: {
         disableWebSecurity: true,
-      }
+        ignoreCertificateErrors: true,
+      },
     });
 
     console.log("✅ Render completed:", outputFilename);