diff --git a/src/migration/MigrationExecutor.ts b/src/migration/MigrationExecutor.ts
index 455c0d0d43..5e7e3d521f 100644
--- a/src/migration/MigrationExecutor.ts
+++ b/src/migration/MigrationExecutor.ts
@@ -323,7 +323,10 @@ export class MigrationExecutor {
         });
 
         // sort them by timestamp
-        return migrations.sort((a, b) => a.timestamp - b.timestamp);
+        const sorted = migrations.sort((a, b) => a.timestamp - b.timestamp);
+
+        // remove duplicates
+        return sorted.filter((migration, index) => sorted.findIndex((unique) => unique.name === migration.name) === index);
     }
 
     /**
@@ -354,9 +357,9 @@ export class MigrationExecutor {
             values["timestamp"] = migration.timestamp;
             values["name"] = migration.name;
         }
-        if (this.connection.driver instanceof MongoDriver) {  
+        if (this.connection.driver instanceof MongoDriver) {
             const mongoRunner = queryRunner as MongoQueryRunner;
-            mongoRunner.databaseConnection.db(this.connection.driver.database!).collection(this.migrationsTableName).insert(values);               
+            mongoRunner.databaseConnection.db(this.connection.driver.database!).collection(this.migrationsTableName).insert(values);
         } else {
             const qb = queryRunner.manager.createQueryBuilder();
             await qb.insert()
@@ -382,7 +385,7 @@ export class MigrationExecutor {
 
         if (this.connection.driver instanceof MongoDriver) {
             const mongoRunner = queryRunner as MongoQueryRunner;
-            mongoRunner.databaseConnection.db(this.connection.driver.database!).collection(this.migrationsTableName).deleteOne(conditions);               
+            mongoRunner.databaseConnection.db(this.connection.driver.database!).collection(this.migrationsTableName).deleteOne(conditions);
         } else {
             const qb = queryRunner.manager.createQueryBuilder();
             await qb.delete()
diff --git a/test/github-issues/4701/issue-4701.ts b/test/github-issues/4701/issue-4701.ts
new file mode 100644
index 0000000000..069fcf1e33
--- /dev/null
+++ b/test/github-issues/4701/issue-4701.ts
@@ -0,0 +1,26 @@
+import "reflect-metadata";
+import {
+    createTestingConnections,
+    closeTestingConnections,
+    reloadTestingDatabases
+} from "../../utils/test-utils";
+import { Connection } from "../../../src/connection/Connection";
+import { Migration } from "../../../src/migration/Migration";
+
+describe("github issues > #4701 Duplicate migrations are executed.", () => {
+    let connections: Connection[];
+    before(async () => connections = await createTestingConnections({
+        migrations: [__dirname + "/migration/*.js"],
+        enabledDrivers: ["postgres"],
+        schemaCreate: true,
+        dropSchema: true
+    }));
+    beforeEach(() => reloadTestingDatabases(connections));
+    after(() => closeTestingConnections(connections));
+
+    it("should skip duplicate pending migrations", () => Promise.all(connections.map(async connection => {
+        const mymigr: Migration[] = await connection.runMigrations();
+        mymigr.length.should.be.equal(1);
+        mymigr[0].name.should.be.equal("ExampleMigration1567759789051");
+    })));
+});
diff --git a/test/github-issues/4701/migration/1567759789051-ExampleMigration.ts b/test/github-issues/4701/migration/1567759789051-ExampleMigration.ts
new file mode 100644
index 0000000000..bab47b747f
--- /dev/null
+++ b/test/github-issues/4701/migration/1567759789051-ExampleMigration.ts
@@ -0,0 +1,9 @@
+import { MigrationInterface } from "../../../../src/migration/MigrationInterface";
+import { QueryRunner } from "../../../../src/query-runner/QueryRunner";
+
+export class ExampleMigration1567759789051 implements MigrationInterface {
+    public async up(queryRunner: QueryRunner): Promise<any> {
+    }
+    public async down(queryRunner: QueryRunner): Promise<any> {
+    }
+}
diff --git a/test/github-issues/4701/migration/1567759832591-ExampleMigrationTwo.ts b/test/github-issues/4701/migration/1567759832591-ExampleMigrationTwo.ts
new file mode 100644
index 0000000000..bab47b747f
--- /dev/null
+++ b/test/github-issues/4701/migration/1567759832591-ExampleMigrationTwo.ts
@@ -0,0 +1,9 @@
+import { MigrationInterface } from "../../../../src/migration/MigrationInterface";
+import { QueryRunner } from "../../../../src/query-runner/QueryRunner";
+
+export class ExampleMigration1567759789051 implements MigrationInterface {
+    public async up(queryRunner: QueryRunner): Promise<any> {
+    }
+    public async down(queryRunner: QueryRunner): Promise<any> {
+    }
+}