diff --git a/tests/test_core_utilities.py b/tests/test_core_utilities.py
index 46c7ec1f..9d2b6987 100644
--- a/tests/test_core_utilities.py
+++ b/tests/test_core_utilities.py
@@ -49,18 +49,12 @@ def test_get_summary(example_class):
 
 def test_rupdate_granular():
     # Update string value
-    s1 = {
-        "a": "String",
-    }
-    s2 = {
-        "a": "String 2",
-    }
+    s1 = {"a": "String"}
+    s2 = {"a": "String 2"}
     assert utilities.rupdate(s1, s2) == s2
 
     # Update int value
-    i1 = {
-        "b": 5,
-    }
+    i1 = {"b": 5}
     i2 = {"b": 50}
     assert utilities.rupdate(i1, i2) == i2
 
@@ -76,9 +70,7 @@ def test_rupdate_granular():
 
     # Merge dictionaries
     d1 = {"d": {"a": "String", "b": 5, "c": []}}
-    d2 = {
-        "d": {"a": "String 2", "b": 50, "c": [1, 2, 3, 4, 5]},
-    }
+    d2 = {"d": {"a": "String 2", "b": 50, "c": [1, 2, 3, 4, 5]}}
     assert utilities.rupdate(d1, d2) == d2
 
     # Replace value with list
@@ -98,9 +90,7 @@ def test_rupdate_granular():
 
     # Create missing dictionary
     md1 = {}
-    md2 = {
-        "d": {"a": "String 2", "b": 50, "c": [1, 2, 3, 4, 5]},
-    }
+    md2 = {"d": {"a": "String 2", "b": 50, "c": [1, 2, 3, 4, 5]}}
     assert utilities.rupdate(md1, md2) == md2
 
 
diff --git a/tests/test_server_spec_utilities.py b/tests/test_server_spec_utilities.py
index 394508af..40a3c51e 100644
--- a/tests/test_server_spec_utilities.py
+++ b/tests/test_server_spec_utilities.py
@@ -208,8 +208,6 @@ def test_expand_refs_no_refs(spec):
 
 
 def test_expand_refs_missing_schema(spec):
-    input_dict = {
-        "$ref": "MissingRef",
-    }
+    input_dict = {"$ref": "MissingRef"}
 
     assert utilities.expand_refs(input_dict, spec) == input_dict
diff --git a/tests/test_server_types.py b/tests/test_server_types.py
index 1548a82a..eee59284 100644
--- a/tests/test_server_types.py
+++ b/tests/test_server_types.py
@@ -102,12 +102,7 @@ def test_func(
         }
     )()
 
-    data = {
-        "positional": 10,
-        "n": 50,
-        "optlist": [4, 5, 6],
-        "untyped": True,
-    }
+    data = {"positional": 10, "n": 50, "optlist": [4, 5, 6], "untyped": True}
     assert gen_schema.dump(data) == expected_schema.dump(data)