diff --git a/Dockerfile.ios b/Dockerfile.ios
index d5c354d..66acd12 100644
--- a/Dockerfile.ios
+++ b/Dockerfile.ios
@@ -27,10 +27,7 @@ ENV PATH="/root/ioscross/arm64/bin:/root/ioscross/x86_64/bin:${PATH}"
 RUN if [ -z "${mono_version}" ]; then echo -e "\n\nargument mono-version is mandatory!\n\n"; exit 1; fi && \
     cp -a /root/files/${mono_version} /root && \
     cd /root/${mono_version} && \
-    patch -p1 < /root/files/patches/mono-xcode-allow-weak-import.patch && \
-    patch -p1 < /root/files/patches/mono-sys-uio-fix-preadv-misdetection.patch && \
     cd godot-mono-builds && \
-    export DISABLE_NO_WEAK_IMPORTS=1 && \
     export MONO_SOURCE_ROOT=/root/${mono_version} && \
     python3 ios.py configure -j --verbose --target=arm64 --ios-toolchain ${IOSCROSS_ROOT}/arm64 --ios-sdk ${IOSCROSS_ROOT}/arm64/SDK/iPhoneOS14.0.sdk --osx-toolchain ${OSXCROSS_ROOT} && \
     python3 ios.py make -j --verbose --target=arm64 && \
diff --git a/Dockerfile.javascript b/Dockerfile.javascript
index 9f6aa61..19eb396 100644
--- a/Dockerfile.javascript
+++ b/Dockerfile.javascript
@@ -15,10 +15,8 @@ RUN if [ -z "${mono_version}" ]; then printf "\n\nArgument mono_version is manda
     source /root/emsdk/emsdk_env.sh && \
     cp -a /root/files/${mono_version} /root && \
     cd /root/${mono_version} && \
-    patch -p1 < /root/files/patches/mono-emscripten-1.39.9.patch && \
     export MONO_SOURCE_ROOT=/root/${mono_version} && \
     cd /root/${mono_version}/godot-mono-builds && \
-    sed -i patch_emscripten.py -e "/emscripten-pr-8457.diff/d" && \
     python3 patch_emscripten.py && \
     python3 wasm.py configure -j --target=runtime && \
     python3 wasm.py make -j --target=runtime && \
diff --git a/Dockerfile.osx b/Dockerfile.osx
index 1ebc32a..7ad1f7e 100644
--- a/Dockerfile.osx
+++ b/Dockerfile.osx
@@ -17,8 +17,6 @@ ENV PATH="/root/osxcross/target/bin:${PATH}"
 
 RUN cp -a /root/files/${mono_version} /root && \
     cd /root/${mono_version} && \
-    patch -p1 < /root/files/patches/mono-xcode-allow-weak-import.patch && \
-    patch -p1 < /root/files/patches/mono-sys-uio-fix-preadv-misdetection.patch && \
     export CMAKE=/root/osxcross/target/bin/x86_64-apple-darwin19-cmake && \
     NOCONFIGURE=1 ./autogen.sh && \
     ./configure --prefix=/root/dependencies/mono \
diff --git a/build.sh b/build.sh
index ea99945..fc5db10 100755
--- a/build.sh
+++ b/build.sh
@@ -88,7 +88,7 @@ if [ ! -e ${mono_root} ]; then
   # Set up godot-mono-builds in tree
   git clone --progress https://github.com/godotengine/godot-mono-builds
   pushd godot-mono-builds
-  git checkout b4c77dcfb6f38f660e73f60c4ae03e11173ac8fd
+  git checkout 42b90fe9a6a6ad6756a62866dc0dcc04a694f83b
   export MONO_SOURCE_ROOT=${mono_root}
   python3 patch_mono.py
   popd
diff --git a/files/patches/mono-emscripten-1.39.9.patch b/files/patches/mono-emscripten-1.39.9.patch
deleted file mode 100644
index e909a9f..0000000
--- a/files/patches/mono-emscripten-1.39.9.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From 8daffc3e4c562560f9e5c4d643bc38e5350eff31 Mon Sep 17 00:00:00 2001
-From: Zoltan Varga <vargaz@gmail.com>
-Date: Sun, 8 Mar 2020 00:16:18 -0500
-Subject: [PATCH] Bump emscripten to 1.39.9. (#19147)
-
----
- sdks/builds/emscripten-pr-8457.diff | 20 --------------------
- sdks/builds/wasm.mk                 |  3 +--
- 2 files changed, 1 insertion(+), 22 deletions(-)
- delete mode 100644 sdks/builds/emscripten-pr-8457.diff
-
-diff --git a/sdks/builds/emscripten-pr-8457.diff b/sdks/builds/emscripten-pr-8457.diff
-deleted file mode 100644
-index 3a03bf669ec8..000000000000
---- a/sdks/builds/emscripten-pr-8457.diff
-+++ /dev/null
-@@ -1,20 +0,0 @@
----- a/emcc.py	2019-08-13 20:07:34.000000000 -0500
--+++ b/emcc.py	2019-08-27 08:05:39.000000000 -0500
--@@ -915,7 +918,7 @@
--         file_suffix = get_file_suffix(arg)
--         if file_suffix in SOURCE_ENDINGS + BITCODE_ENDINGS + DYNAMICLIB_ENDINGS + ASSEMBLY_ENDINGS + HEADER_ENDINGS or shared.Building.is_ar(arg): # we already removed -o <target>, so all these should be inputs
--           newargs[i] = ''
---          if file_suffix.endswith(SOURCE_ENDINGS):
--+          if file_suffix.endswith(SOURCE_ENDINGS) or (has_dash_c and file_suffix.endswith(OBJECT_FILE_ENDINGS)):
--             input_files.append((i, arg))
--             has_source_inputs = True
--           elif file_suffix.endswith(HEADER_ENDINGS):
--@@ -1838,7 +1840,7 @@
--       # First, generate LLVM bitcode. For each input file, we get base.o with bitcode
--       for i, input_file in input_files:
--         file_ending = get_file_suffix(input_file)
---        if file_ending.endswith(SOURCE_ENDINGS):
--+        if file_ending.endswith(SOURCE_ENDINGS) or (has_dash_c and file_ending.endswith(OBJECT_FILE_ENDINGS)):
--           compile_source_file(i, input_file)
--         else: # bitcode
--           if file_ending.endswith(BITCODE_ENDINGS):
-diff --git a/sdks/builds/wasm.mk b/sdks/builds/wasm.mk
-index 520e04c48cbc..53ed93cc0c8c 100644
---- a/sdks/builds/wasm.mk
-+++ b/sdks/builds/wasm.mk
-@@ -1,7 +1,7 @@
- #emcc has lots of bash'isms
- SHELL:=/bin/bash
- 
--EMSCRIPTEN_VERSION=1.39.7
-+EMSCRIPTEN_VERSION=1.39.9
- EMSCRIPTEN_LOCAL_SDK_DIR=$(TOP)/sdks/builds/toolchains/emsdk
- 
- EMSCRIPTEN_SDK_DIR ?= $(EMSCRIPTEN_LOCAL_SDK_DIR)
-@@ -29,7 +29,6 @@ $(EMSCRIPTEN_SDK_DIR)/.emscripten: | $(EMSCRIPTEN_SDK_DIR)
- 	cd $(TOP)/sdks/builds/toolchains/emsdk && ./emsdk install $(EMSCRIPTEN_VERSION)
- 	cd $(TOP)/sdks/builds/toolchains/emsdk && ./emsdk activate --embedded $(EMSCRIPTEN_VERSION)
- 	cd $(TOP)/sdks/builds/toolchains/emsdk/upstream/emscripten && (patch -N -p1 < $(TOP)/sdks/builds/fix-emscripten-8511.diff; exit 0)
--	cd $(TOP)/sdks/builds/toolchains/emsdk/upstream/emscripten && (patch -N -p1 < $(TOP)/sdks/builds/emscripten-pr-8457.diff; exit 0)
- 	touch $@
- 
- .PHONY: provision-wasm
diff --git a/files/patches/mono-sys-uio-fix-preadv-misdetection.patch b/files/patches/mono-sys-uio-fix-preadv-misdetection.patch
deleted file mode 100644
index 4e4d646..0000000
--- a/files/patches/mono-sys-uio-fix-preadv-misdetection.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-Backported from Unity's mono fork:
-https://github.com/Unity-Technologies/mono/pull/1309
----
-
-diff --git a/support/sys-uio.c b/support/sys-uio.c
-index 53e162f9..5e44f796 100644
---- a/support/sys-uio.c
-+++ b/support/sys-uio.c
-@@ -82,7 +82,7 @@ Mono_Posix_Syscall_writev (int dirfd, struct Mono_Posix_Iovec *iov, gint32 iovcn
- }
- #endif /* def HAVE_WRITEV */
- 
--#ifdef HAVE_PREADV
-+#if defined(HAVE_PREADV) && !defined(__APPLE__) // Configure incorrectly detects that this function is available on macOS SDK 11.0 (it is not)
- gint64
- Mono_Posix_Syscall_preadv (int dirfd, struct Mono_Posix_Iovec *iov, gint32 iovcnt, gint64 off)
- {
-@@ -100,9 +100,9 @@ Mono_Posix_Syscall_preadv (int dirfd, struct Mono_Posix_Iovec *iov, gint32 iovcn
- 	free (v);
- 	return res;
- }
--#endif /* def HAVE_PREADV */
-+#endif /* defined(HAVE_PREADV) && !defined(__APPLE__) */
- 
--#ifdef HAVE_PWRITEV
-+#if defined(HAVE_PWRITEV) && !defined(__APPLE__) // Configure incorrectly detects that this function is available on macOS SDK 11.0 (it is not)
- gint64
- Mono_Posix_Syscall_pwritev (int dirfd, struct Mono_Posix_Iovec *iov, gint32 iovcnt, gint64 off)
- {
-@@ -120,7 +120,7 @@ Mono_Posix_Syscall_pwritev (int dirfd, struct Mono_Posix_Iovec *iov, gint32 iovc
- 	free (v);
- 	return res;
- }
--#endif /* def HAVE_PWRITEV */
-+#endif /* defined(HAVE_PWRITEV) && !defined(__APPLE__) */
- 
- 
- /*
diff --git a/files/patches/mono-xcode-allow-weak-import.patch b/files/patches/mono-xcode-allow-weak-import.patch
deleted file mode 100644
index 38142d3..0000000
--- a/files/patches/mono-xcode-allow-weak-import.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-Workaround for Xcode bug: https://github.com/mono/mono/issues/19393
----
-
-diff --git a/sdks/builds/ios.mk b/sdks/builds/ios.mk
-index 0470ccb57cb..bf1036330c5 100644
---- a/sdks/builds/ios.mk
-+++ b/sdks/builds/ios.mk
-@@ -90,7 +90,6 @@ _ios-$(1)_CPPFLAGS= \
- 	-DSMALL_CONFIG -D_XOPEN_SOURCE -DHOST_IOS -DHAVE_LARGE_FILE_SUPPORT=1 \
- 
- _ios-$(1)_LDFLAGS= \
--	-Wl,-no_weak_imports \
- 	-arch $(3) \
- 	-framework CoreFoundation \
- 	-lobjc -lc++
-diff --git a/sdks/builds/mac.mk b/sdks/builds/mac.mk
-index bded6b2c22b..98d8be2f456 100644
---- a/sdks/builds/mac.mk
-+++ b/sdks/builds/mac.mk
-@@ -36,8 +36,7 @@ _mac-$(1)_CXXFLAGS= \
- 
- _mac-$(1)_CPPFLAGS=
- 
--_mac-$(1)_LDFLAGS= \
--	-Wl,-no_weak_imports
-+_mac-$(1)_LDFLAGS=
- 
- _mac-$(1)_CONFIGURE_FLAGS= \
- 	--disable-boehm \