diff --git a/jsf/schema_types/array.py b/jsf/schema_types/array.py
index e24268e..bb047a1 100644
--- a/jsf/schema_types/array.py
+++ b/jsf/schema_types/array.py
@@ -29,7 +29,7 @@ def generate(self, context: Dict[str, Any]) -> Optional[List[Any]]:
 
             output = [
                 self.items.generate(context)
-                for _ in range(random.randint(self.minItems, self.maxItems))
+                for _ in range(random.randint(int(self.minItems), int(self.maxItems)))
             ]
             if self.uniqueItems and self.items.type == "object":
                 output = [dict(s) for s in {frozenset(d.items()) for d in output}]
diff --git a/jsf/schema_types/number.py b/jsf/schema_types/number.py
index 38cd63d..c98aa30 100644
--- a/jsf/schema_types/number.py
+++ b/jsf/schema_types/number.py
@@ -34,7 +34,7 @@ def generate(self, context: Dict[str, Any]) -> Optional[float]:
                 _max = self.maximum
 
             return float(
-                step * random.randint(math.ceil(float(_min) / step), math.floor(float(_max) / step))
+                step * random.uniform(math.ceil(float(_min) / step), math.floor(float(_max) / step))
             )
 
     def model(self, context: Dict[str, Any]):
diff --git a/jsf/schema_types/string.py b/jsf/schema_types/string.py
index 623615d..5611881 100644
--- a/jsf/schema_types/string.py
+++ b/jsf/schema_types/string.py
@@ -68,7 +68,7 @@ def temporal_duration(
 
 
 def mostly_zero_randint(_min: int, _max: int) -> int:
-    return 0 if random.random() > 0.8 else random.randint(_min, _max)
+    return 0 if random.random() > 0.8 else random.randint(int(_min), int(_max))
 
 
 def fake_duration():