diff --git a/Makefile.CrossWindows b/Makefile.CrossWindows
index 59f5a302..2b30dcb5 100644
--- a/Makefile.CrossWindows
+++ b/Makefile.CrossWindows
@@ -100,11 +100,11 @@ dist-win32: build-server build-win32 build-win32-noconsole
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp "$(WIN32_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp "$(WIN32_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/scrcpy-noconsole.exe"
-	cp prebuilt-deps/ffmpeg-4.1.4-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.4-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.4-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.4-win32-shared/bin/swresample-3.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.4-win32-shared/bin/swscale-5.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/swresample-3.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/swscale-5.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
@@ -115,11 +115,11 @@ dist-win64: build-server build-win64 build-win64-noconsole
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp "$(WIN64_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp "$(WIN64_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/scrcpy-noconsole.exe"
-	cp prebuilt-deps/ffmpeg-4.1.4-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.4-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.4-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.4-win64-shared/bin/swresample-3.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.1.4-win64-shared/bin/swscale-5.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/swresample-3.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/swscale-5.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
diff --git a/cross_win32.txt b/cross_win32.txt
index 3ad45c79..d13af0e2 100644
--- a/cross_win32.txt
+++ b/cross_win32.txt
@@ -15,6 +15,6 @@ cpu = 'i686'
 endian = 'little'
 
 [properties]
-prebuilt_ffmpeg_shared = 'ffmpeg-4.1.4-win32-shared'
-prebuilt_ffmpeg_dev = 'ffmpeg-4.1.4-win32-dev'
+prebuilt_ffmpeg_shared = 'ffmpeg-4.2.1-win32-shared'
+prebuilt_ffmpeg_dev = 'ffmpeg-4.2.1-win32-dev'
 prebuilt_sdl2 = 'SDL2-2.0.10/i686-w64-mingw32'
diff --git a/cross_win64.txt b/cross_win64.txt
index 3f222ba5..09f387e1 100644
--- a/cross_win64.txt
+++ b/cross_win64.txt
@@ -15,6 +15,6 @@ cpu = 'x86_64'
 endian = 'little'
 
 [properties]
-prebuilt_ffmpeg_shared = 'ffmpeg-4.1.4-win64-shared'
-prebuilt_ffmpeg_dev = 'ffmpeg-4.1.4-win64-dev'
+prebuilt_ffmpeg_shared = 'ffmpeg-4.2.1-win64-shared'
+prebuilt_ffmpeg_dev = 'ffmpeg-4.2.1-win64-dev'
 prebuilt_sdl2 = 'SDL2-2.0.10/x86_64-w64-mingw32'
diff --git a/prebuilt-deps/Makefile b/prebuilt-deps/Makefile
index 6cfb4100..0c857565 100644
--- a/prebuilt-deps/Makefile
+++ b/prebuilt-deps/Makefile
@@ -10,24 +10,24 @@ prepare-win32: prepare-sdl2 prepare-ffmpeg-shared-win32 prepare-ffmpeg-dev-win32
 prepare-win64: prepare-sdl2 prepare-ffmpeg-shared-win64 prepare-ffmpeg-dev-win64 prepare-adb
 
 prepare-ffmpeg-shared-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/shared/ffmpeg-4.1.4-win32-shared.zip \
-		596608277f6b937c3dea7c46e854665d75b3de56790bae07f655ca331440f003 \
-		ffmpeg-4.1.4-win32-shared
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/shared/ffmpeg-4.2.1-win32-shared.zip \
+		9208255f409410d95147151d7e829b5699bf8d91bfe1e81c3f470f47c2fa66d2 \
+		ffmpeg-4.2.1-win32-shared
 
 prepare-ffmpeg-dev-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/dev/ffmpeg-4.1.4-win32-dev.zip \
-		a80c86e263cfad26e202edfa5e6e939a2c88843ae26f031d3e0d981a39fd03fb \
-		ffmpeg-4.1.4-win32-dev
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/dev/ffmpeg-4.2.1-win32-dev.zip \
+		c3469e6c5f031cbcc8cba88dee92d6548c5c6b6ff14f4097f18f72a92d0d70c4 \
+		ffmpeg-4.2.1-win32-dev
 
 prepare-ffmpeg-shared-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.1.4-win64-shared.zip \
-		a90889871de2cab8a79b392591313a188189a353f69dde1db98aebe20b280989 \
-		ffmpeg-4.1.4-win64-shared
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.2.1-win64-shared.zip \
+		55063d3cf750a75485c7bf196031773d81a1b25d0980c7db48ecfc7701a42331 \
+		ffmpeg-4.2.1-win64-shared
 
 prepare-ffmpeg-dev-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-4.1.4-win64-dev.zip \
-		6c9d53f9e94ce1821e975ec668e5b9d6e9deb4a45d0d7e30264685d3dfbbb068 \
-		ffmpeg-4.1.4-win64-dev
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-4.2.1-win64-dev.zip \
+		5af393be5f25c0a71aa29efce768e477c35347f7f8e0d9696767d5b9d405b74e \
+		ffmpeg-4.2.1-win64-dev
 
 prepare-sdl2:
 	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.10-mingw.tar.gz \