diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index bc5ba4e..5354c5a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -199,6 +199,8 @@ if(NOT USE_SYSTEM_NCNN)
     option(WITH_LAYER_deconvolutiondepthwise1d "" OFF)
     option(WITH_LAYER_deconvolution3d "" OFF)
     option(WITH_LAYER_deconvolutiondepthwise3d "" OFF)
+    option(WITH_LAYER_einsum "" OFF)
+    option(WITH_LAYER_deformableconv2d "" OFF)
 
     add_subdirectory(ncnn)
 endif()
diff --git a/src/ncnn b/src/ncnn
index a061871..b4ba207 160000
--- a/src/ncnn
+++ b/src/ncnn
@@ -1 +1 @@
-Subproject commit a061871c1c909bb528acfb53704c895d092b8c44
+Subproject commit b4ba207c18d3103d6df890c0e3a97b469b196b26