diff --git a/app/grants/models/clr_match.py b/app/grants/models/clr_match.py
index 32835ac2449..5cd26afb999 100644
--- a/app/grants/models/clr_match.py
+++ b/app/grants/models/clr_match.py
@@ -53,4 +53,4 @@ class CLRMatch(SuperModel):
 
     def __str__(self):
         """Return the string representation of a Grant."""
-        return f"id: {self.pk}, grant: {self.grant.pk}, round: {self.round_number}, amount: {self.amount}"
\ No newline at end of file
+        return f"id: {self.pk}, grant: {self.grant.pk}, round: {self.round_number}, amount: {self.amount}"
diff --git a/app/grants/models/grant.py b/app/grants/models/grant.py
index e7f44e801f6..ec8ab8fe42a 100644
--- a/app/grants/models/grant.py
+++ b/app/grants/models/grant.py
@@ -488,7 +488,7 @@ class Meta:
     )
 
     in_active_clrs = models.ManyToManyField(
-        GrantCLR,
+        "GrantCLR",
         help_text="Active Grants CLR Round"
     )
     is_clr_active = models.BooleanField(default=False, help_text=_('CLR Round active or not? (auto computed)'))
@@ -885,7 +885,6 @@ def save(self, update=True, *args, **kwargs):
 
         self.clr_prediction_curve = self.calc_clr_prediction_curve
         self.clr_round_num = self.calc_clr_round_label
-
         self.search_vector = (
             SearchVector('title', weight='A') + SearchVector('description', weight='B')
         )
diff --git a/app/grants/models/match_pledge.py b/app/grants/models/match_pledge.py
index 4afa84c9a8b..fcd26445d2d 100644
--- a/app/grants/models/match_pledge.py
+++ b/app/grants/models/match_pledge.py
@@ -57,4 +57,4 @@ def data_json(self):
 
     def __str__(self):
         """Return the string representation of this object."""
-        return f"{self.profile} <> {self.amount} DAI"
\ No newline at end of file
+        return f"{self.profile} <> {self.amount} DAI"
diff --git a/app/grants/models/subscription.py b/app/grants/models/subscription.py
index a4d8a9ad8d6..dbbe91a6192 100644
--- a/app/grants/models/subscription.py
+++ b/app/grants/models/subscription.py
@@ -554,4 +554,4 @@ def create_contribution(self, tx_id, is_successful_contribution=True):
             successful_contribution(self.grant, self, contribution)
 
         update_grant_metadata.delay(self.pk)
-        return contribution
\ No newline at end of file
+        return contribution