diff --git a/setup.py b/setup.py
index cd8f3b5..252c29a 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 requirements = [
     'lxml',             # For XML DOM Tree
-    'networkx==2.2',    # For joint graph
+    'networkx>=2.2',    # For joint graph
     'numpy',            # Numpy
     'pillow',           # For texture image loading
     'pycollada==0.6',   # COLLADA (.dae) mesh loading via trimesh
diff --git a/urdfpy/urdf.py b/urdfpy/urdf.py
index 14b0216..1ec96db 100644
--- a/urdfpy/urdf.py
+++ b/urdfpy/urdf.py
@@ -895,7 +895,7 @@ def color(self):
     @color.setter
     def color(self, value):
         if value is not None:
-            value = np.asanyarray(value).astype(np.float)
+            value = np.asanyarray(value).astype(float)
             value = np.clip(value, 0.0, 1.0)
             if value.shape != (4,):
                 raise ValueError('Color must be a (4,) float')