diff --git a/src/sakia/tests/unit/gui/views/test_explorer_node.py b/src/sakia/tests/unit/gui/views/test_explorer_node.py
index cd54b19f534f54e2931d1f092d872f1d1f3bc993..e684d5ab56d23107426561f4ed721e5126d30f84 100644
--- a/src/sakia/tests/unit/gui/views/test_explorer_node.py
+++ b/src/sakia/tests/unit/gui/views/test_explorer_node.py
@@ -72,9 +72,9 @@ class TestExplorerNode(unittest.TestCase, QuamashTest):
         async def exec_test():
             node = ExplorerNode(("A", metadata), QPointF(0, 0), nx_pos, 0, 1)
             bounding_rect = node.boundingRect()
-            self.assertAlmostEqual(bounding_rect.x(), -0.5, delta=5)
-            self.assertAlmostEqual(bounding_rect.y(), -0.5, delta=5)
-            self.assertAlmostEqual(bounding_rect.width(), 19.59375, delta=5)
-            self.assertAlmostEqual(bounding_rect.height(), 37.0, delta=5)
+            self.assertAlmostEqual(bounding_rect.x(), -0.5, delta=15)
+            self.assertAlmostEqual(bounding_rect.y(), -0.5, delta=15)
+            self.assertAlmostEqual(bounding_rect.width(), 19.59375, delta=15)
+            self.assertAlmostEqual(bounding_rect.height(), 37.0, delta=15)
 
         self.lp.run_until_complete(exec_test())
diff --git a/src/sakia/tests/unit/gui/views/test_wot_node.py b/src/sakia/tests/unit/gui/views/test_wot_node.py
index a92ba2daa72a6309c08b885178f3a16274b989db..6bf361fa23537deb98c11b0a71fbc03dcd91c5c1 100644
--- a/src/sakia/tests/unit/gui/views/test_wot_node.py
+++ b/src/sakia/tests/unit/gui/views/test_wot_node.py
@@ -74,7 +74,7 @@ class TestWotNode(unittest.TestCase, QuamashTest):
             bounding_rect = node.boundingRect()
             self.assertAlmostEqual(bounding_rect.x(), -0.5, delta=1)
             self.assertAlmostEqual(bounding_rect.y(), -0.5, delta=1)
-            self.assertAlmostEqual(bounding_rect.width(), 19.59375, delta=5)
-            self.assertAlmostEqual(bounding_rect.height(), 37.0, delta=5)
+            self.assertAlmostEqual(bounding_rect.width(), 19.59375, delta=15)
+            self.assertAlmostEqual(bounding_rect.height(), 37.0, delta=15)
 
         self.lp.run_until_complete(exec_test())