diff --git a/qcarchivetesting/conda-envs/fulltest_qcportal.yaml b/qcarchivetesting/conda-envs/fulltest_qcportal.yaml
index 0ab7545a0..ec271e322 100644
--- a/qcarchivetesting/conda-envs/fulltest_qcportal.yaml
+++ b/qcarchivetesting/conda-envs/fulltest_qcportal.yaml
@@ -16,7 +16,7 @@ dependencies:
   - tabulate
   - tqdm
   - pandas
-  - pyjwt
+  - pyjwt>=2.10.0
   - packaging
   - typing_extensions
   - python-dateutil
diff --git a/qcarchivetesting/conda-envs/fulltest_server.yaml b/qcarchivetesting/conda-envs/fulltest_server.yaml
index 83eda7fbb..fd45bc62d 100644
--- a/qcarchivetesting/conda-envs/fulltest_server.yaml
+++ b/qcarchivetesting/conda-envs/fulltest_server.yaml
@@ -29,6 +29,7 @@ dependencies:
   # QCFractal dependencies
   - flask
   - flask-jwt-extended
+  - pyjwt>=2.10.0
   - waitress
   - bcrypt
   - sqlalchemy>=2.0
diff --git a/qcarchivetesting/conda-envs/fulltest_snowflake.yaml b/qcarchivetesting/conda-envs/fulltest_snowflake.yaml
index 7763d0f26..a101d78a8 100644
--- a/qcarchivetesting/conda-envs/fulltest_snowflake.yaml
+++ b/qcarchivetesting/conda-envs/fulltest_snowflake.yaml
@@ -32,6 +32,7 @@ dependencies:
   # QCFractal dependencies
   - flask
   - flask-jwt-extended
+  - pyjwt>=2.10.0
   - waitress
   - bcrypt
   - sqlalchemy>=2.0
diff --git a/qcarchivetesting/conda-envs/fulltest_worker.yaml b/qcarchivetesting/conda-envs/fulltest_worker.yaml
index 1551ed8da..05b29ac49 100644
--- a/qcarchivetesting/conda-envs/fulltest_worker.yaml
+++ b/qcarchivetesting/conda-envs/fulltest_worker.yaml
@@ -19,7 +19,7 @@ dependencies:
   - tabulate
   - tqdm
   - pandas
-  - pyjwt
+  - pyjwt>=2.10.0
   - packaging
   - typing_extensions
   - python-dateutil
diff --git a/qcfractal/pyproject.toml b/qcfractal/pyproject.toml
index 89fc563bc..f032af9a4 100644
--- a/qcfractal/pyproject.toml
+++ b/qcfractal/pyproject.toml
@@ -23,6 +23,7 @@ classifiers = [
 dependencies = [
     "flask",
     "flask-jwt-extended",
+    "pyjwt >=2.10",
     "waitress",
     "bcrypt",
     "sqlalchemy >=2.0",
diff --git a/qcfractal/qcfractal/flask_app/handlers.py b/qcfractal/qcfractal/flask_app/handlers.py
index 01404cec8..75b3c948f 100644
--- a/qcfractal/qcfractal/flask_app/handlers.py
+++ b/qcfractal/qcfractal/flask_app/handlers.py
@@ -10,6 +10,7 @@
     set_access_cookies,
     get_jwt_request_location,
 )
+from jwt.exceptions import InvalidSubjectError
 from werkzeug.exceptions import InternalServerError, HTTPException
 
 from qcfractal.flask_app import storage_socket
@@ -172,3 +173,10 @@ def handle_auth_error(error):
 def handle_compute_manager_error(error: ComputeManagerError):
     # Handle compute manager errors
     return jsonify(msg=str(error)), 400
+
+
+@home_v1.app_errorhandler(InvalidSubjectError)
+def handle_old_tokens(error):
+    # Handle old tokens that have integers as the subject
+    # Just say they have been expired, and you need to login again
+    return jsonify(msg="Token has expired"), 401
diff --git a/qcfractal/qcfractal/flask_app/helpers.py b/qcfractal/qcfractal/flask_app/helpers.py
index 5063dd678..5c5bec71e 100644
--- a/qcfractal/qcfractal/flask_app/helpers.py
+++ b/qcfractal/qcfractal/flask_app/helpers.py
@@ -11,6 +11,7 @@
     create_access_token,
     create_refresh_token,
 )
+from jwt.exceptions import InvalidSubjectError
 from werkzeug.exceptions import BadRequest, Forbidden
 
 from qcfractal.flask_app import storage_socket
@@ -78,6 +79,10 @@ def assert_role_permissions(requested_action: str):
         role = claims.get("role", None)
         groups = claims.get("groups", None)
 
+        # user_id is stored in the JWT as a string
+        if user_id is not None:
+            user_id = int(user_id)
+
         subject = {"user_id": user_id, "username": username}
 
         # Pull the first part of the URL (ie, /api/v1/molecule/a/b/c -> /api/v1/molecule)
@@ -105,7 +110,7 @@ def access_token_from_user(user_info: UserInfo, role_info: RoleInfo):
     Creates a JWT access token from user/role information
     """
     return create_access_token(
-        identity=user_info.id,
+        identity=str(user_info.id),
         additional_claims={
             "username": user_info.username,
             "role": user_info.role,
@@ -161,7 +166,7 @@ def login_and_get_jwt(get_refresh_token: bool) -> Tuple[str, Optional[str]]:
     access_token = access_token_from_user(user_info, role_info)
 
     if get_refresh_token:
-        refresh_token = create_refresh_token(identity=user_info.id)
+        refresh_token = create_refresh_token(identity=str(user_info.id))
     else:
         refresh_token = None