diff --git a/SCsub b/SCsub
index ea4b21b..45222a1 100644
--- a/SCsub
+++ b/SCsub
@@ -30,7 +30,7 @@ elif env["platform"] == "windows":
     else:  # MSVC
         env["LIBRUNTIMESUFFIX"] = ".lib"
         # Force Windows SDK library suffix (see https://github.com/godotengine/godot/issues/23687)
-        env.Append(LINKFLAGS=["bcrypt.lib", "userenv.lib", "ws2_32.lib", "advapi32.lib"])
+        env.Append(LINKFLAGS=["bcrypt.lib", "userenv.lib", "ws2_32.lib", "advapi32.lib", "ntdll.lib"])
 
 # Explicit static libraries
 runtime_lib = env.File(
diff --git a/utils.py b/utils.py
index 326d514..bbef3af 100644
--- a/utils.py
+++ b/utils.py
@@ -6,9 +6,9 @@
 from zipfile import ZipFile
 
 WASMER_BASE_URL = "https://github.com/wasmerio/wasmer/releases/download/{0}/wasmer-{1}.tar.gz"
-WASMER_VER_DEFAULT = "v4.2.0"
+WASMER_VER_DEFAULT = "v4.3.1"
 WASMTIME_BASE_URL = "https://github.com/bytecodealliance/wasmtime/releases/download/{0}/wasmtime-{0}-{1}-c-api.{2}"
-WASMTIME_VER_DEFAULT = "v12.0.1"
+WASMTIME_VER_DEFAULT = "v21.0.1"
 
 
 def _validate_version(v):