diff --git a/examples/demo.py b/examples/demo.py
index fb7196bdaef41ed36d2e190860678302209fae69..1e4a14d3ba6880b904403642bde7a3a3bf4115a2 100644
--- a/examples/demo.py
+++ b/examples/demo.py
@@ -163,8 +163,14 @@ class Demo:
     def run_complex_scene():
         demo_001 = Demo(Scenario_Generator.load_scenario('complex_scene.pkl'))
         demo_001.set_record_frames(os.path.join(__file_dirname__, '..', 'rendering', 'frame_{:04d}.bmp'))
-        demo_001.run_demo(360)
+        demo_001.run_demo(120)
 
+    @staticmethod
+    def run_complex_scene_2():
+        demo_001 = Demo(Scenario_Generator.load_scenario('complex_scene_2.pkl'))
+        demo_001.set_record_frames(os.path.join(__file_dirname__, '..', 'rendering', 'frame_{:04d}.bmp'))
+        demo_001.run_demo(120)
 
 if __name__ == "__main__":
     Demo.run_complex_scene()
+    Demo.run_complex_scene_2()
diff --git a/setup.py b/setup.py
index 72e19e3ce79adeafdc2034a42633d940e9d4c98e..c11b99ffc07632eb7fb7507c8e811fd382ede045 100644
--- a/setup.py
+++ b/setup.py
@@ -20,21 +20,21 @@ if os.name == 'nt':
     is64bit = p[0] == '64bit'
     if sys.version[0:3] == '3.5':
         if is64bit:
-            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.0-cp35-cp35m-win_amd64.whl'
+            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.1-cp35-cp35m-win_amd64.whl'
         else:
-            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.0-cp35-cp35m-win32.whl'
+            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.1-cp35-cp35m-win32.whl'
 
     if sys.version[0:3] == '3.6':
         if is64bit:
-            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.0-cp36-cp36m-win_amd64.whl'
+            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.1-cp36-cp36m-win_amd64.whl'
         else:
-            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.0-cp36-cp36m-win32.whl'
+            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.1-cp36-cp36m-win32.whl'
 
     if sys.version[0:3] == '3.7':
         if is64bit:
-            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.0-cp37-cp37m-win_amd64.whl'
+            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.1-cp37-cp37m-win_amd64.whl'
         else:
-            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.0-cp37-cp37m-win32.whl'
+            url = 'https://download.lfd.uci.edu/pythonlibs/t4jqbe6o/pycairo-1.18.1-cp37-cp37m-win32.whl'
 
     try:
         import pycairo