diff --git a/ports/eastl/CONTROL b/ports/eastl/CONTROL
index b803366d8a2..2b6f5984ea1 100644
--- a/ports/eastl/CONTROL
+++ b/ports/eastl/CONTROL
@@ -1,4 +1,4 @@
 Source: eastl
-Version: 3.13.05
+Version: 3.13.05-1
 Description: Electronic Arts Standard Template Library.
   It is a C++ template library of containers, algorithms, and iterators useful for runtime and tool development across multiple platforms. It is a fairly extensive and robust implementation of such a library and has an emphasis on high performance above all other considerations.
diff --git a/ports/eastl/fixchar8_t.patch b/ports/eastl/fixchar8_t.patch
new file mode 100644
index 00000000000..51fcfe69a56
--- /dev/null
+++ b/ports/eastl/fixchar8_t.patch
@@ -0,0 +1,13 @@
+diff --git a/scripts/CMake/CommonCppFlags.cmake b/scripts/CMake/CommonCppFlags.cmake
+index 566fbee..4fcca61 100644
+--- a/scripts/CMake/CommonCppFlags.cmake
++++ b/scripts/CMake/CommonCppFlags.cmake
+@@ -54,7 +54,7 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+         message(FATAL_ERROR "Building with a gcc version less than 4.7.3 is not supported.")
+     endif()
+ elseif(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++latest /W4 /permissive-")
++    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /std:c++latest /W4 /permissive- /Zc:char8_t-")
+ endif()
+ 
+ 
diff --git a/ports/eastl/portfile.cmake b/ports/eastl/portfile.cmake
index 2d6f1110237..13cf14a2108 100644
--- a/ports/eastl/portfile.cmake
+++ b/ports/eastl/portfile.cmake
@@ -6,9 +6,10 @@ set(SOURCE_PATH ${CURRENT_BUILDTREES_DIR}/src/eastl)
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO electronicarts/EASTL
-    REF 3.13.05
+    REF 3.13.05
     SHA512 2364554339203c972f10d58ebe8f14fb221a40451f4cd2c3c5acd6891e8580c1a0a5d4ba592c91349d3feca50d9880648bb37358820a1c9552dde3f7af400a82
     HEAD_REF master
+    PATCHES fixchar8_t.patch # can be removed after electronicarts/EASTL#274 is resolved
 )
 
 vcpkg_configure_cmake(