diff --git a/scenarios/requirements.txt b/scenarios/requirements.txt
index e4de849c..c4ba5840 100644
--- a/scenarios/requirements.txt
+++ b/scenarios/requirements.txt
@@ -1,5 +1,5 @@
 qingstor-sdk >= 2.0.2
 assertpy >= 0.10
 argparse >= 1.1
-behave >= 1.2
+git+https://github.com/behave/behave.git
 sh >= 1.12
diff --git a/scenarios/steps/rm.py b/scenarios/steps/rm.py
index 201141ba..ac2444a4 100644
--- a/scenarios/steps/rm.py
+++ b/scenarios/steps/rm.py
@@ -57,13 +57,13 @@ def step_impl(context):
         bucket.put_object(row["name"])
 
 
-@when(u'delete keys with prefix "中文目录测试"')
-def step_impl(context):
+@when(u'delete keys with prefix "{prefix}"')
+def step_impl(context, prefix):
     qsctl(
         "rm",
         "qs://{bucket}/{prefix}".format(
             bucket=test_data['bucket_name'],
-            prefix=context.text,
+            prefix=prefix,
         ),
         "-r",
     ).wait()
@@ -73,7 +73,7 @@ def step_impl(context):
 def step_impl(context):
     for row in context.table:
         assert_that(bucket.head_object(row["name"]).status_code
-                    ).is_equal_to(404 if row["deleted"] is "1" else 200)
+                    ).is_equal_to(404 if row["deleted"] == "1" else 200)
 
     for row in context.table:
         bucket.delete_object(row["name"])