diff --git a/3rdparty/mkldnn b/3rdparty/mkldnn
index 07579e6c0c68..b3540a8fc975 160000
--- a/3rdparty/mkldnn
+++ b/3rdparty/mkldnn
@@ -1 +1 @@
-Subproject commit 07579e6c0c6839a390a6f3040e05a2b2c71e628a
+Subproject commit b3540a8fc97534e142eb070e225ef33dfcbca1c7
diff --git a/tests/cpp/operator/mkldnn_test.cc b/tests/cpp/operator/mkldnn_test.cc
index 973c398026a7..2e34f7bdbbee 100644
--- a/tests/cpp/operator/mkldnn_test.cc
+++ b/tests/cpp/operator/mkldnn_test.cc
@@ -100,7 +100,7 @@ static void VerifyDefMem(const mkldnn::memory &mem) {
 
 TEST(MKLDNN_UTIL_FUNC, MemFormat) {
   // Check whether the number of format is correct.
-  CHECK_EQ(mkldnn_format_tag_last, 154);
+  CHECK_EQ(mkldnn_format_tag_last, 205);
   CHECK_EQ(mkldnn_nchw, 5);
   CHECK_EQ(mkldnn_oihw, 5);
 }