diff --git a/pyproject.toml b/pyproject.toml
index c7392bf..4ae1fe3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,10 +25,10 @@ classifiers = [
 keywords = ['aiida', 'workflows']
 requires-python = '>=3.8'
 dependencies = [
-    #'aiida-core~=2.0',
-    #'fastapi~=0.65.1',
+    'aiida-core~=2.0',
+    'fastapi~=0.65.1',
     'uvicorn[standard]~=0.19.0',
-    #'pydantic~=1.10',
+    'pydantic~=1.10',
     'graphene~=2.0',
     'python-dateutil~=2.0',
     'lark~=0.11.0',