diff --git a/schemes/main/manifest.json b/schemes/main/manifest.json
index 9106c4e..68c1e95 100644
--- a/schemes/main/manifest.json
+++ b/schemes/main/manifest.json
@@ -1,5 +1,5 @@
 {
-  "base-tag": "swift-DEVELOPMENT-SNAPSHOT-2025-03-28-a",
+  "base-tag": "swift-DEVELOPMENT-SNAPSHOT-2025-04-02-a",
   "icu4c": [],
   "libxml2": [
     "https://github.com/swiftwasm/libxml2-wasm/releases/download/2.0.0/libxml2-wasm32-unknown-wasi.tar.gz",
diff --git a/schemes/main/swift-foundation/0001-wasm-Add-O_NONBLOCK-shim.patch b/schemes/main/swift-foundation/0001-wasm-Add-O_NONBLOCK-shim.patch
deleted file mode 100644
index b097345..0000000
--- a/schemes/main/swift-foundation/0001-wasm-Add-O_NONBLOCK-shim.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-From 00b480096e31a7f9a70d6516b407cac2a88862cb Mon Sep 17 00:00:00 2001
-From: Yuta Saito <kateinoigakukun@gmail.com>
-Date: Mon, 31 Mar 2025 11:06:50 +0000
-Subject: [PATCH] [wasm] Add O_NONBLOCK shim
-
----
- Sources/FoundationEssentials/WASILibc+Extensions.swift | 3 +++
- Sources/_FoundationCShims/include/platform_shims.h     | 1 +
- 2 files changed, 4 insertions(+)
-
-diff --git a/Sources/FoundationEssentials/WASILibc+Extensions.swift b/Sources/FoundationEssentials/WASILibc+Extensions.swift
-index 529ac77..0a420e3 100644
---- a/Sources/FoundationEssentials/WASILibc+Extensions.swift
-+++ b/Sources/FoundationEssentials/WASILibc+Extensions.swift
-@@ -49,6 +49,9 @@ internal var O_TRUNC: Int32 {
- internal var O_WRONLY: Int32 {
-     return _platform_shims_O_WRONLY()
- }
-+internal var O_NONBLOCK: Int32 {
-+    return _platform_shims_O_NONBLOCK()
-+}
- internal var O_RDONLY: Int32 {
-     return _platform_shims_O_RDONLY()
- }
-diff --git a/Sources/_FoundationCShims/include/platform_shims.h b/Sources/_FoundationCShims/include/platform_shims.h
-index e02b581..37d0ca2 100644
---- a/Sources/_FoundationCShims/include/platform_shims.h
-+++ b/Sources/_FoundationCShims/include/platform_shims.h
-@@ -102,6 +102,7 @@ static inline int32_t _platform_shims_O_CREAT(void) { return O_CREAT; }
- static inline int32_t _platform_shims_O_EXCL(void) { return O_EXCL; }
- static inline int32_t _platform_shims_O_TRUNC(void) { return O_TRUNC; }
- static inline int32_t _platform_shims_O_WRONLY(void) { return O_WRONLY; }
-+static inline int32_t _platform_shims_O_NONBLOCK(void) { return O_NONBLOCK; }
- static inline int32_t _platform_shims_O_RDONLY(void) { return O_RDONLY; }
- static inline int32_t _platform_shims_O_DIRECTORY(void) { return O_DIRECTORY; }
- static inline int32_t _platform_shims_O_NOFOLLOW(void) { return O_NOFOLLOW; }
--- 
-2.48.1
-