diff --git a/builtin/providers/aws/data_source_aws_ecs_task_definition_test.go b/builtin/providers/aws/data_source_aws_ecs_task_definition_test.go
index 545da07143..6d6ffa35a5 100644
--- a/builtin/providers/aws/data_source_aws_ecs_task_definition_test.go
+++ b/builtin/providers/aws/data_source_aws_ecs_task_definition_test.go
@@ -15,10 +15,10 @@ func TestAccAWSEcsDataSource_ecsTaskDefinition(t *testing.T) {
 			resource.TestStep{
 				Config: testAccCheckAwsEcsTaskDefinitionDataSourceConfig,
 				Check: resource.ComposeTestCheckFunc(
-					resource.TestMatchResourceAttr("data.aws_ecs_task_definition.mongo", "id", regexp.MustCompile("^arn:aws:ecs:us-west-2:[0-9]{12}:task-definition/mongodb:[1-9]*[0-9]$")),
+					resource.TestMatchResourceAttr("data.aws_ecs_task_definition.mongo", "id", regexp.MustCompile("^arn:aws:ecs:us-west-2:[0-9]{12}:task-definition/mongodb:[1-9][0-9]*$")),
 					resource.TestCheckResourceAttr("data.aws_ecs_task_definition.mongo", "family", "mongodb"),
 					resource.TestCheckResourceAttr("data.aws_ecs_task_definition.mongo", "network_mode", "bridge"),
-					resource.TestMatchResourceAttr("data.aws_ecs_task_definition.mongo", "revision", regexp.MustCompile("^[1-9]*[0-9]$")),
+					resource.TestMatchResourceAttr("data.aws_ecs_task_definition.mongo", "revision", regexp.MustCompile("^[1-9][0-9]*$")),
 					resource.TestCheckResourceAttr("data.aws_ecs_task_definition.mongo", "status", "ACTIVE"),
 					resource.TestMatchResourceAttr("data.aws_ecs_task_definition.mongo", "task_role_arn", regexp.MustCompile("^arn:aws:iam::[0-9]{12}:role/mongo_role$")),
 				),