diff --git a/.github/workflows/macvim-buildtest.yaml b/.github/workflows/macvim-buildtest.yaml
index 5bee202306..0a421be5ed 100644
--- a/.github/workflows/macvim-buildtest.yaml
+++ b/.github/workflows/macvim-buildtest.yaml
@@ -232,8 +232,10 @@ jobs:
             sed -i.bak -f ci/config.mk.optimized.sed src/auto/config.mk
           fi
 
-          # Use Homebrew GNU libiconv since Apple iconv has been broken since macOS 14
-          sed -i.bak -f ci/config.mk.brew-libiconv.sed src/auto/config.mk
+          if ${{ inputs.publish == true }}; then
+            # Use Homebrew GNU libiconv since Apple iconv has been broken since macOS 14
+            sed -i.bak -f ci/config.mk.brew-libiconv.sed src/auto/config.mk
+          fi
 
       - name: Modify configure result
         if: inputs.publish
@@ -284,9 +286,11 @@ jobs:
             echo 'Found external dynamic linkage!'; false
           fi
 
-          # Make sure we are not using system iconv, which has been buggy since macOS 14.
-          if otool -L ${VIM_BIN} | grep '^\s*/usr/lib/libiconv'; then
-            echo 'Using system iconv! We should be linking against GNU iconv instead.'; false
+          if ${{ inputs.publish == true }}; then
+            # Make sure we are not using system iconv, which has been buggy since macOS 14.
+            if otool -L ${VIM_BIN} | grep '^\s*/usr/lib/libiconv'; then
+              echo 'Using system iconv! We should be linking against GNU iconv instead.'; false
+            fi
           fi
 
           # Make sure that --disable-sparkle flag will properly exclude all references to Sparkle symbols. This is
diff --git a/src/if_lua.c b/src/if_lua.c
index 3642561617..e496402362 100644
--- a/src/if_lua.c
+++ b/src/if_lua.c
@@ -215,7 +215,11 @@ static void luaV_call_lua_func_free(void *state);
 #  define luaopen_os dll_luaopen_os
 #  define luaopen_package dll_luaopen_package
 #  define luaopen_debug dll_luaopen_debug
-#  define luaL_openlibs dll_luaL_openlibs
+#  if LUA_VERSION_NUM >= 505
+#   define luaL_openselectedlibs dll_luaL_openselectedlibs
+#  else
+#   define luaL_openlibs dll_luaL_openlibs
+#  endif
 
 // lauxlib
 #  if LUA_VERSION_NUM <= 501
@@ -331,7 +335,11 @@ int (*dll_luaopen_io) (lua_State *L);
 int (*dll_luaopen_os) (lua_State *L);
 int (*dll_luaopen_package) (lua_State *L);
 int (*dll_luaopen_debug) (lua_State *L);
+#  if LUA_VERSION_NUM >= 505
+void (*dll_luaL_openselectedlibs) (lua_State *L, int load, int preload);
+#  else
 void (*dll_luaL_openlibs) (lua_State *L);
+#  endif
 
 typedef void **luaV_function;
 typedef struct {
@@ -439,7 +447,11 @@ static const luaV_Reg luaV_dll[] = {
     {"luaopen_os", (luaV_function) &dll_luaopen_os},
     {"luaopen_package", (luaV_function) &dll_luaopen_package},
     {"luaopen_debug", (luaV_function) &dll_luaopen_debug},
+#  if LUA_VERSION_NUM >= 505
+    {"luaL_openselectedlibs", (luaV_function) &dll_luaL_openselectedlibs},
+#  else
     {"luaL_openlibs", (luaV_function) &dll_luaL_openlibs},
+#  endif
     {NULL, NULL}
 };
 
@@ -2571,7 +2583,11 @@ luaopen_vim(lua_State *L)
 luaV_newstate(void)
 {
     lua_State *L = luaL_newstate();
+# if LUA_VERSION_NUM >= 505
+    luaL_openselectedlibs(L, ~0, 0); // core libs
+# else
     luaL_openlibs(L); // core libs
+# endif
     lua_pushcfunction(L, luaopen_vim); // vim
     lua_call(L, 0, 0);
     return L;