diff --git a/test/expect/ModelTester.test_fasterrcnn_resnet50_fpn_expect.pkl b/test/expect/ModelTester.test_fasterrcnn_resnet50_fpn_expect.pkl
index 878b9f5d431..3085bf36e60 100644
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diff --git a/test/expect/ModelTester.test_keypointrcnn_resnet50_fpn_expect.pkl b/test/expect/ModelTester.test_keypointrcnn_resnet50_fpn_expect.pkl
index 18e14836238..0f0d2c92f86 100644
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diff --git a/test/expect/ModelTester.test_maskrcnn_resnet50_fpn_expect.pkl b/test/expect/ModelTester.test_maskrcnn_resnet50_fpn_expect.pkl
index f2406f8cabb..d8ee673ab60 100644
Binary files a/test/expect/ModelTester.test_maskrcnn_resnet50_fpn_expect.pkl and b/test/expect/ModelTester.test_maskrcnn_resnet50_fpn_expect.pkl differ
diff --git a/test/expect/ModelTester.test_retinanet_resnet50_fpn_expect.pkl b/test/expect/ModelTester.test_retinanet_resnet50_fpn_expect.pkl
index 1bffc79fd07..8bd32f5be88 100644
Binary files a/test/expect/ModelTester.test_retinanet_resnet50_fpn_expect.pkl and b/test/expect/ModelTester.test_retinanet_resnet50_fpn_expect.pkl differ
diff --git a/torchvision/ops/feature_pyramid_network.py b/torchvision/ops/feature_pyramid_network.py
index 979bbfb1c10..b68e4b775d6 100644
--- a/torchvision/ops/feature_pyramid_network.py
+++ b/torchvision/ops/feature_pyramid_network.py
@@ -86,7 +86,7 @@ def __init__(
             self.layer_blocks.append(layer_block_module)
 
         # initialize parameters now to avoid modifying the initialization of top_blocks
-        for m in self.children():
+        for m in self.modules():
             if isinstance(m, nn.Conv2d):
                 nn.init.kaiming_uniform_(m.weight, a=1)
                 nn.init.constant_(m.bias, 0)