diff --git a/docs/changelog.md b/docs/changelog.md
index 66ddebb..5237b03 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -3,9 +3,14 @@
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html) and [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) format.
 
 
+## [0.4.4] - 2024-08-21
+### Fixed
+- Project annotation model
+
+
 ## [0.4.3] - 2024-07-19
 ### Updated
-- Updated models for new pephub API
+- Updated models for new PEPhub API
 
 
 ## [0.4.2] - 2024-04-16
diff --git a/pephubclient/__init__.py b/pephubclient/__init__.py
index eb0dba7..f950988 100644
--- a/pephubclient/__init__.py
+++ b/pephubclient/__init__.py
@@ -4,7 +4,7 @@
 import coloredlogs
 
 __app_name__ = "pephubclient"
-__version__ = "0.4.3"
+__version__ = "0.4.4"
 __author__ = "Oleksandr Khoroshevskyi, Rafal Stepien"
 
 
diff --git a/pephubclient/models.py b/pephubclient/models.py
index 55a12c6..473dd0b 100644
--- a/pephubclient/models.py
+++ b/pephubclient/models.py
@@ -42,7 +42,7 @@ class ProjectAnnotationModel(BaseModel):
     last_update_date: datetime.datetime
     submission_date: datetime.datetime
     digest: str
-    pep_schema: str
+    pep_schema: Union[str, int, None] = None
     pop: bool = False
     stars_number: Optional[int] = 0
     forked_from: Optional[Union[str, None]] = None
diff --git a/requirements/requirements-all.txt b/requirements/requirements-all.txt
index 3dd6043..803ef23 100644
--- a/requirements/requirements-all.txt
+++ b/requirements/requirements-all.txt
@@ -1,5 +1,5 @@
 typer>=0.7.0
-peppy>=0.40.1
+peppy>=0.40.5
 requests>=2.28.2
 pydantic>2.5.0
 pandas>=2.0.0