diff --git a/package.xml b/package.xml
index 4b631cc..3a1f590 100644
--- a/package.xml
+++ b/package.xml
@@ -29,9 +29,10 @@
   <run_depend>angles</run_depend>
   <run_depend>boost</run_depend>
   <run_depend>eigen</run_depend>
+  <run_depend>python-numpy</run_depend>
   <run_depend>roscpp</run_depend>
   <run_depend>sensor_msgs</run_depend>
   <run_depend>tf</run_depend>
   
-  <test_depend>unittest</test_depend>
+  <test_depend>rosunit</test_depend>
 </package>
diff --git a/test/projection_test.py b/test/projection_test.py
index a6102c0..e9da60c 100755
--- a/test/projection_test.py
+++ b/test/projection_test.py
@@ -26,7 +26,7 @@ def build_constant_scan(
         raise BuildScanException
 
     scan = LaserScan()
-    scan.header.stamp = rospy.Time.now()
+    scan.header.stamp = rospy.rostime.Time.from_sec(10.10)
     scan.header.frame_id = "laser_frame"
     scan.angle_min = angle_min
     scan.angle_max = angle_max
@@ -42,13 +42,6 @@ def build_constant_scan(
 
 class ProjectionTest(unittest.TestCase):
 
-    @classmethod
-    def setUpClass(cls):
-        rospy.init_node('projection_test')
-
-    def tearDown(self):
-        pass
-
     def test_project_laser(self):
         tolerance = 6 # decimal places
         projector = LaserProjection()