diff --git a/cmake.deps/cmake/BuildLuv.cmake b/cmake.deps/cmake/BuildLuv.cmake
index 7220333de1..6b2d24f1f9 100644
--- a/cmake.deps/cmake/BuildLuv.cmake
+++ b/cmake.deps/cmake/BuildLuv.cmake
@@ -22,7 +22,7 @@ if(USE_BUNDLED_LIBUV)
   list(APPEND LUV_CMAKE_ARGS -D CMAKE_PREFIX_PATH=${DEPS_INSTALL_DIR})
 endif()
 
-list(APPEND LUV_CMAKE_ARGS "-DCMAKE_C_FLAGS:STRING=${DEPS_INCLUDE_FLAGS}")
+list(APPEND LUV_CMAKE_ARGS "-DCMAKE_C_FLAGS:STRING=${DEPS_INCLUDE_FLAGS} -w")
 if(CMAKE_GENERATOR MATCHES "Unix Makefiles" AND
     (CMAKE_SYSTEM_NAME MATCHES ".*BSD" OR CMAKE_SYSTEM_NAME MATCHES "DragonFly"))
     list(APPEND LUV_CMAKE_ARGS -D CMAKE_MAKE_PROGRAM=gmake)
diff --git a/cmake.deps/cmake/GettextCMakeLists.txt b/cmake.deps/cmake/GettextCMakeLists.txt
index 26f060ec08..0c22efe4a6 100644
--- a/cmake.deps/cmake/GettextCMakeLists.txt
+++ b/cmake.deps/cmake/GettextCMakeLists.txt
@@ -73,8 +73,7 @@ set_property(TARGET libintl APPEND PROPERTY COMPILE_DEFINITIONS
   NO_XMALLOC
   set_relocation_prefix=libintl_set_relocation_prefix
   relocate=libintl_relocate
-  HAVE_CONFIG_H
-  _CRT_SECURE_NO_WARNINGS)
+  HAVE_CONFIG_H)
 
 
 file(READ gettext-tools/config.h.in CONFIG_CONTENT)
diff --git a/cmake.deps/cmake/LibiconvCMakeLists.txt b/cmake.deps/cmake/LibiconvCMakeLists.txt
index f6a23db864..c9af1a67e4 100644
--- a/cmake.deps/cmake/LibiconvCMakeLists.txt
+++ b/cmake.deps/cmake/LibiconvCMakeLists.txt
@@ -31,7 +31,7 @@ set(USE_MBSTATE_T 0)
 configure_file(libcharset/include/localcharset.h.build.in localcharset.h)
 configure_file(include/iconv.h.build.in iconv.h)
 
-add_definitions(-DLIBDIR -D_CRT_SECURE_NO_WARNINGS)
+add_definitions(-DLIBDIR)
 
 add_library(libcharset libcharset/lib/localcharset.c)
 
diff --git a/cmake.deps/cmake/LibtermkeyCMakeLists.txt b/cmake.deps/cmake/LibtermkeyCMakeLists.txt
index 87a56e4865..4b5a5a4ea8 100644
--- a/cmake.deps/cmake/LibtermkeyCMakeLists.txt
+++ b/cmake.deps/cmake/LibtermkeyCMakeLists.txt
@@ -16,7 +16,7 @@ endif()
 
 add_library(termkey termkey.c driver-csi.c driver-ti.c)
 
-target_compile_definitions(termkey PRIVATE _CRT_SECURE_NO_WARNINGS HAVE_UNIBILIUM)
+target_compile_definitions(termkey PRIVATE HAVE_UNIBILIUM)
 target_include_directories(termkey PRIVATE SYSTEM ${UNIBILIUM_INCLUDE_DIRS})
 
 set_target_properties(termkey PROPERTIES
diff --git a/cmake.deps/cmake/LibvtermCMakeLists.txt b/cmake.deps/cmake/LibvtermCMakeLists.txt
index 0c31d32d64..f9b448b50d 100644
--- a/cmake.deps/cmake/LibvtermCMakeLists.txt
+++ b/cmake.deps/cmake/LibvtermCMakeLists.txt
@@ -3,10 +3,6 @@ project(libvterm C)
 
 include(GNUInstallDirs)
 
-if(MSVC)
-  add_definitions(-D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_DEPRECATE)
-endif()
-
 set(DECDRAWING [[
  static const struct StaticTableEncoding encoding_DECdrawing = {
    { .decode = &decode_table },
diff --git a/cmake.deps/cmake/LpegCMakeLists.txt b/cmake.deps/cmake/LpegCMakeLists.txt
index 54cef7a9e4..ad2f062487 100644
--- a/cmake.deps/cmake/LpegCMakeLists.txt
+++ b/cmake.deps/cmake/LpegCMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required(VERSION 3.10)
 project (lpeg C)
 
+add_compile_options(-w)
+
 include(GNUInstallDirs)
 
 file(GLOB LPEG_SOURCES ${CMAKE_SOURCE_DIR}/*.c)
diff --git a/cmake/Deps.cmake b/cmake/Deps.cmake
index e8dcbaa79d..6a7fd77aa8 100644
--- a/cmake/Deps.cmake
+++ b/cmake/Deps.cmake
@@ -18,6 +18,12 @@ if(APPLE)
   list(APPEND DEPS_CMAKE_ARGS -D CMAKE_FIND_FRAMEWORK=${CMAKE_FIND_FRAMEWORK})
 endif()
 
+if(MSVC)
+  list(APPEND DEPS_CMAKE_ARGS -D CMAKE_C_FLAGS="/w")
+else()
+  list(APPEND DEPS_CMAKE_ARGS -D CMAKE_C_FLAGS="-w")
+endif()
+
 set(DEPS_CMAKE_CACHE_ARGS -DCMAKE_OSX_ARCHITECTURES:STRING=${CMAKE_OSX_ARCHITECTURES})
 
 # MAKE_PRG