diff --git a/official/cv/FasterRCNN/src/detecteval.py b/official/cv/FasterRCNN/src/detecteval.py
index a6766af9712fc1e54b0fe6fadbee1b5b010d6635..65b5780461478efbcf75b2b1c12387f0102758cf 100644
--- a/official/cv/FasterRCNN/src/detecteval.py
+++ b/official/cv/FasterRCNN/src/detecteval.py
@@ -499,8 +499,8 @@ class DetectEval(COCOeval):
                     assert (tps.shape[0]) == 1
                     assert (fps.shape[0]) == 1
 
-                    tp_sum = np.cumsum(tps, axis=1).astype(dtype=np.float)
-                    fp_sum = np.cumsum(fps, axis=1).astype(dtype=np.float)
+                    tp_sum = np.cumsum(tps, axis=1).astype(dtype=np.float32)
+                    fp_sum = np.cumsum(fps, axis=1).astype(dtype=np.float32)
                     ids = catIds[k0]
                     label = labels[ids]