diff --git a/.gitmodules b/.gitmodules
index 87c77075..e69de29b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +0,0 @@
-[submodule "src/lzma-sdk"]
-    path = src/lzma-sdk
-    url = https://github.com/upx/upx-lzma-sdk.git
-    branch = master
diff --git a/src/lzma-sdk b/src/lzma-sdk
deleted file mode 160000
index c6c2fc49..00000000
--- a/src/lzma-sdk
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit c6c2fc49e2ac6f3fc82762c6d3703969274d48de