diff --git a/graphengine b/graphengine
index 854631a7b56..9bce7edf7fd 160000
--- a/graphengine
+++ b/graphengine
@@ -1 +1 @@
-Subproject commit 854631a7b56ef9290c28581f9ff1a548e7fb049c
+Subproject commit 9bce7edf7fdfc377b426a42c4da69572dc1f1285
diff --git a/mindspore/ccsrc/transform/graph_ir/op_declare/math_ops_declare.cc b/mindspore/ccsrc/transform/graph_ir/op_declare/math_ops_declare.cc
index 22cc441e9bc..adf3c101ce4 100644
--- a/mindspore/ccsrc/transform/graph_ir/op_declare/math_ops_declare.cc
+++ b/mindspore/ccsrc/transform/graph_ir/op_declare/math_ops_declare.cc
@@ -52,7 +52,7 @@ REG_ADPT_DESC(ActULQClampMinGrad, kNameActULQClampMinGrad, ADPT_DESC(ActULQClamp
 // HistogramFixedWidthD
 INPUT_MAP(HistogramFixedWidthD) = {{1, INPUT_DESC(x)}, {2, INPUT_DESC(range)}};
 ATTR_MAP(HistogramFixedWidthD) = {{"nbins", ATTR_DESC(nbins, AnyTraits<int64_t>())},
-                                  {"dtype", ATTR_DESC(dtype, AnyTraits<std::string>())}};
+                                  {"dtype", ATTR_DESC(dtype, AnyTraits<int64_t>())}};
 OUTPUT_MAP(HistogramFixedWidthD) = {{0, OUTPUT_DESC(y)}};
 REG_ADPT_DESC(HistogramFixedWidthD, kNameHistogramFixedWidthD, ADPT_DESC(HistogramFixedWidthD))