diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2e3b8092..c2673b40 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ on:
         branches: [ master ]
 
 env:
-    LUA_VERSION: 5.4.6-2
+    LUA_VERSION: 5.4.7
     LUAROCKS_VERSION: 3.9.0
 
 jobs:
@@ -81,7 +81,8 @@ jobs:
               run: |
                   git clone https://github.com/pallene-lang/pallene-tracer
                   cd pallene-tracer
-                  sudo make install LUA_DIR=/usr/local
+                  make LUA_PREFIX=/usr/local
+                  sudo make install
 
             - name: Build
               run: luarocks --local make
@@ -93,4 +94,3 @@ jobs:
               run: |
                   eval "$(luarocks path)"
                   busted -o gtest -v ./spec
-
diff --git a/src/pallene/coder.lua b/src/pallene/coder.lua
index 10bd6324..a2a41238 100644
--- a/src/pallene/coder.lua
+++ b/src/pallene/coder.lua
@@ -1317,14 +1317,10 @@ gen_cmd["SetTable"] = function(self, args)
     return util.render([[
         {
             TValue keyv; ${init_keyv}
+            TValue valv; ${init_valv}
             static int cache = -1;
             TValue *slot = pallene_getstr($field_len, $tab, $key, &cache);
-            if (l_unlikely(isabstkey(slot))) {
-                TValue valv; ${init_valv}
-                luaH_newkey(L, $tab, &keyv, &valv);
-            } else {
-                ${set_slot}
-            }
+            luaH_finishset(L, $tab, &keyv, slot, &valv);
             ${barrier};
         }
     ]], {
@@ -1896,8 +1892,8 @@ function Coder:generate_luaopen_function()
         int ${name}(lua_State *L)
         {
 
-            #if LUA_VERSION_RELEASE_NUM != 50406
-            #error "Lua version must be exactly 5.4.6"
+            #if LUA_VERSION_RELEASE_NUM != 50407
+            #error "Lua version must be exactly 5.4.7"
             #endif
 
             luaL_checkcoreversion(L);
diff --git a/src/pallene/pallenelib.lua b/src/pallene/pallenelib.lua
index 47be4517..4054b701 100644
--- a/src/pallene/pallenelib.lua
+++ b/src/pallene/pallenelib.lua
@@ -596,7 +596,7 @@ static TString *pallene_tostring(lua_State *L, const char* file, int line, TValu
             return luaS_newlstr(L, buff, len);
         }
         case LUA_TSTRING:
-            return luaS_new(L, svalue(&v));
+            return luaS_new(L, getstr(tsvalue(&v)));
         case LUA_TBOOLEAN:
             return luaS_new(L, ((pallene_is_truthy(&v)) ? "true" : "false"));
         default: {