diff --git a/backend/grant/proposal/views.py b/backend/grant/proposal/views.py
index eccee99c..2a051a09 100644
--- a/backend/grant/proposal/views.py
+++ b/backend/grant/proposal/views.py
@@ -19,6 +19,7 @@ from grant.utils.misc import is_email, make_url, from_zat
 from grant.utils.enums import ProposalStatus, ContributionStatus
 from grant.utils import pagination
 from sqlalchemy import or_
+from datetime import datetime
 
 from .models import (
     Proposal,
@@ -216,7 +217,7 @@ def update_proposal(milestones, proposal_id, **kwargs):
             m = Milestone(
                 title=mdata["title"],
                 content=mdata["content"],
-                date_estimated=parse(mdata["dateEstimated"]),
+                date_estimated=datetime.fromtimestamp(mdata["dateEstimated"]),
                 payout_percent=str(mdata["payoutPercent"]),
                 immediate_payout=mdata["immediatePayout"],
                 proposal_id=g.current_proposal.id
diff --git a/backend/tests/test_data.py b/backend/tests/test_data.py
index ebf22952..2f1c0d54 100644
--- a/backend/tests/test_data.py
+++ b/backend/tests/test_data.py
@@ -31,7 +31,7 @@ milestones = [
     {
         "title": "All the money straightaway",
         "content": "cool stuff with it",
-        "dateEstimated": "Fri, 30 Nov 2018 01:42:23 GMT",
+        "dateEstimated": 1549505307,
         "payoutPercent": "100",
         "immediatePayout": False
     }