diff --git a/tests/test_checkout.py b/tests/test_checkout.py
index eb1d46602..23c0918f6 100644
--- a/tests/test_checkout.py
+++ b/tests/test_checkout.py
@@ -284,8 +284,8 @@ class TestCheckoutMissingMd5InStageFile(TestRepro):
         with open(self.file1_stage, "r") as fd:
             d = yaml.load(fd)
 
-        del (d[Stage.PARAM_OUTS][0][RemoteLOCAL.PARAM_CHECKSUM])
-        del (d[Stage.PARAM_DEPS][0][RemoteLOCAL.PARAM_CHECKSUM])
+        del d[Stage.PARAM_OUTS][0][RemoteLOCAL.PARAM_CHECKSUM]
+        del d[Stage.PARAM_DEPS][0][RemoteLOCAL.PARAM_CHECKSUM]
 
         with open(self.file1_stage, "w") as fd:
             yaml.dump(d, fd)
diff --git a/tests/test_data_cloud.py b/tests/test_data_cloud.py
index 1fd864558..200250d00 100644
--- a/tests/test_data_cloud.py
+++ b/tests/test_data_cloud.py
@@ -634,7 +634,7 @@ class TestWarnOnOutdatedStage(TestDvc):
 
         stage_file_path = stage.relpath
         content = load_stage_file(stage_file_path)
-        del (content["outs"][0]["md5"])
+        del content["outs"][0]["md5"]
         with open(stage_file_path, "w") as stage_file:
             yaml.dump(content, stage_file)
 
diff --git a/tests/test_repro.py b/tests/test_repro.py
index 66154c3a4..beb825567 100644
--- a/tests/test_repro.py
+++ b/tests/test_repro.py
@@ -709,8 +709,8 @@ class TestReproMissingMd5InStageFile(TestRepro):
         with open(self.file1_stage, "r") as fd:
             d = yaml.load(fd)
 
-        del (d[Stage.PARAM_OUTS][0][RemoteLOCAL.PARAM_CHECKSUM])
-        del (d[Stage.PARAM_DEPS][0][RemoteLOCAL.PARAM_CHECKSUM])
+        del d[Stage.PARAM_OUTS][0][RemoteLOCAL.PARAM_CHECKSUM]
+        del d[Stage.PARAM_DEPS][0][RemoteLOCAL.PARAM_CHECKSUM]
 
         with open(self.file1_stage, "w") as fd:
             yaml.dump(d, fd)