diff --git a/models/migrations/v1_12/v128.go b/models/migrations/v1_12/v128.go
index 44d44a26c5..6eea1337ef 100644
--- a/models/migrations/v1_12/v128.go
+++ b/models/migrations/v1_12/v128.go
@@ -94,7 +94,7 @@ func FixMergeBase(x *xorm.Engine) error {
 			} else {
 				parentsString, _, err := git.NewCommand(git.DefaultContext, "rev-list", "--parents", "-n", "1").AddDynamicArguments(pr.MergedCommitID).RunStdString(&git.RunOpts{Dir: repoPath})
 				if err != nil {
-					log.Error("Unable to get parents for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
+					log.Warn("Unable to get parents for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
 					continue
 				}
 				parents := strings.Split(strings.TrimSpace(parentsString), " ")
diff --git a/models/migrations/v1_12/v134.go b/models/migrations/v1_12/v134.go
index 3d1c82f09e..23c2916ba8 100644
--- a/models/migrations/v1_12/v134.go
+++ b/models/migrations/v1_12/v134.go
@@ -81,7 +81,7 @@ func RefixMergeBase(x *xorm.Engine) error {
 
 			parentsString, _, err := git.NewCommand(git.DefaultContext, "rev-list", "--parents", "-n", "1").AddDynamicArguments(pr.MergedCommitID).RunStdString(&git.RunOpts{Dir: repoPath})
 			if err != nil {
-				log.Error("Unable to get parents for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
+				log.Warn("Unable to get parents for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
 				continue
 			}
 			parents := strings.Split(strings.TrimSpace(parentsString), " ")