diff --git a/internal/git/git.go b/internal/git/git.go
index 136a828..d1db11b 100644
--- a/internal/git/git.go
+++ b/internal/git/git.go
@@ -233,7 +233,7 @@ func (r *Repository) hasChangesWithRemote(ctx context.Context, mainBranchRef, lo
 		return false, nil
 	}
 
-	remoteDiff, err := commitOnRemotePRBranch.PatchContext(ctx, currentRemotePRMergeBase)
+	remoteDiff, err := currentRemotePRMergeBase.PatchContext(ctx, commitOnRemotePRBranch)
 	if err != nil {
 		return false, err
 	}
@@ -248,7 +248,7 @@ func (r *Repository) hasChangesWithRemote(ctx context.Context, mainBranchRef, lo
 		return false, err
 	}
 
-	return remoteDiff.String() == localDiff.String(), nil
+	return remoteDiff.String() != localDiff.String(), nil
 }
 
 func (r *Repository) commitFromRef(refName plumbing.ReferenceName) (*object.Commit, error) {
diff --git a/internal/git/git_test.go b/internal/git/git_test.go
index 3d05538..bf300df 100644
--- a/internal/git/git_test.go
+++ b/internal/git/git_test.go
@@ -147,15 +147,17 @@ func TestRepository_HasChangesWithRemote(t *testing.T) {
 					OnBranch(mainBranchRef),
 					AsNewBranch(remotePRBranchRef),
 					WithFile("VERSION", "v1.1.0"),
+					WithFile("CHANGELOG.md", "Foo"),
 				),
 				WithCommit(
-					"chore: release v1.2.0",
+					"chore: release v1.1.0",
 					OnBranch(mainBranchRef),
 					AsNewBranch(localPRBranchRef),
-					WithFile("VERSION", "v1.2.0"),
+					WithFile("VERSION", "v1.1.0"),
+					WithFile("CHANGELOG.md", "FooBar"),
 				),
 			),
-			want:    false,
+			want:    true,
 			wantErr: assert.NoError,
 		},
 	}