diff --git a/backend/extensions/package.json b/backend/extensions/package.json
index 90366a48..0823fed7 100644
--- a/backend/extensions/package.json
+++ b/backend/extensions/package.json
@@ -1,6 +1,6 @@
 {
   "name": "directus-extensions",
   "dependencies": {
-    "directus-extension-sync": "^3.0.4"
+    "directus-extension-sync": "3.0.4"
   }
 }
\ No newline at end of file
diff --git a/backend/seed.sh b/backend/seed.sh
index 42b97d31..d69219e0 100755
--- a/backend/seed.sh
+++ b/backend/seed.sh
@@ -16,7 +16,7 @@ PROJECT_NAME="${PROJECT:-development}"
 PROJECT_FOLDER=$SCRIPT_DIR/directus-config/$PROJECT_NAME
 
 echo "Sync collections"
-npx directus-sync push \
+npx directus-sync@3.4.0 push \
   --dump-path $PROJECT_FOLDER \
   --directus-url $DIRECTUS_URL \
   --directus-email $DIRECTUS_EMAIL \
@@ -24,7 +24,7 @@ npx directus-sync push \
   || exit 1
 
 echo "Seed data"
-npx directus-sync seed push \
+npx directus-sync@3.4.0 seed push \
   --seed-path $PROJECT_FOLDER/seed \
   --directus-url $DIRECTUS_URL \
   --directus-email $DIRECTUS_EMAIL \