diff --git a/pkg/zstd/gen.lua b/pkg/zstd/gen.lua
index 405ccccf..cc41abff 100644
--- a/pkg/zstd/gen.lua
+++ b/pkg/zstd/gen.lua
@@ -39,6 +39,7 @@ lib('libzstd.a', [[lib/(
 	)
 	decompress/(
 		huf_decompress.c
+		huf_decompress_amd64.S
 		zstd_ddict.c
 		zstd_decompress.c
 		zstd_decompress_block.c
@@ -46,7 +47,7 @@ lib('libzstd.a', [[lib/(
 )]])
 
 exe('zstd', [[
-	programs/(zstdcli.c util.c timefn.c fileio.c)
+	programs/(zstdcli.c util.c timefn.c fileio.c fileio_asyncio.c)
 	libzstd.a
 ]])
 file('bin/zstd', '755', '$outdir/zstd')
diff --git a/pkg/zstd/patch/0002-ZSTD_VecMask_next-fix-incorrect-variable-name-in-fal.patch b/pkg/zstd/patch/0002-ZSTD_VecMask_next-fix-incorrect-variable-name-in-fal.patch
deleted file mode 100644
index 6aa02e0a..00000000
--- a/pkg/zstd/patch/0002-ZSTD_VecMask_next-fix-incorrect-variable-name-in-fal.patch
+++ /dev/null
@@ -1,26 +0,0 @@
-From 0f2837d010dce1f0a384c3ba6f54a86f39c607d5 Mon Sep 17 00:00:00 2001
-From: Dan Nelson <dnelson_1901@yahoo.com>
-Date: Sat, 15 May 2021 10:20:37 -0500
-Subject: [PATCH] ZSTD_VecMask_next: fix incorrect variable name in fallback
- code path
-
----
- lib/compress/zstd_lazy.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/lib/compress/zstd_lazy.c b/lib/compress/zstd_lazy.c
-index 3d523e84..9e13f37c 100644
---- a/lib/compress/zstd_lazy.c
-+++ b/lib/compress/zstd_lazy.c
-@@ -1081,7 +1081,7 @@ static U32 ZSTD_VecMask_next(ZSTD_VecMask val) {
-         0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17, 4, 8,
- 		31, 27, 13, 23, 21, 19, 16, 7, 26, 12, 18, 6, 11, 5, 10, 9
-     };
--	return multiplyDeBruijnBitPosition[((U32)((v & -(int)v) * 0x077CB531U)) >> 27];
-+	return multiplyDeBruijnBitPosition[((U32)((val & -(int)val) * 0x077CB531U)) >> 27];
- #   endif
- }
- 
--- 
-2.31.1
-
diff --git a/pkg/zstd/src b/pkg/zstd/src
index a488ba11..794ea1b0 160000
--- a/pkg/zstd/src
+++ b/pkg/zstd/src
@@ -1 +1 @@
-Subproject commit a488ba114ec17ea1054b9057c26a046fc122b3b6
+Subproject commit 794ea1b0afca0f020f4e57b6732332231fb23c70
diff --git a/pkg/zstd/ver b/pkg/zstd/ver
index c9407383..f85218f8 100644
--- a/pkg/zstd/ver
+++ b/pkg/zstd/ver
@@ -1 +1 @@
-1.5.0 r1
+1.5.6 r0