diff --git a/.github/workflows/check_builtins.yml b/.github/workflows/check_builtins.yml
new file mode 100644
index 00000000..3c75aa65
--- /dev/null
+++ b/.github/workflows/check_builtins.yml
@@ -0,0 +1,29 @@
+name: CI
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+    tags: '*'
+jobs:
+  test:
+    name: 'Check builtins.jl consistency'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: nightly
+          arch: x64
+      - uses: actions/cache@v1
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
+      - uses: julia-actions/julia-buildpkg@v1
+      - run: julia test/check_builtins.jl
diff --git a/bin/generate_builtins.jl b/bin/generate_builtins.jl
index 291bfca8..cd648e3a 100644
--- a/bin/generate_builtins.jl
+++ b/bin/generate_builtins.jl
@@ -8,6 +8,7 @@ const RECENTLY_ADDED = Core.Builtin[
     Core.get_binding_type, Core.set_binding_type!,
     Core.getglobal, Core.setglobal!,
     Core.modifyfield!, Core.replacefield!, Core.swapfield!,
+    Core.finalizer
 ]
 const kwinvoke = Core.kwfunc(Core.invoke)
 
diff --git a/src/builtins.jl b/src/builtins.jl
index b01ecefa..a0cb561d 100644
--- a/src/builtins.jl
+++ b/src/builtins.jl
@@ -140,6 +140,16 @@ function maybe_evaluate_builtin(frame, call_expr, expand::Bool)
         return Some{Any}(Core.const_arrayref(getargs(args, frame)...))
     elseif @static isdefined(Core, :donotdelete) && f === Core.donotdelete
         return Some{Any}(Core.donotdelete(getargs(args, frame)...))
+    elseif @static isdefined(Core, :finalizer) && f === Core.finalizer
+        if nargs == 2
+            return Some{Any}(Core.finalizer(@lookup(frame, args[2]), @lookup(frame, args[3])))
+        elseif nargs == 3
+            return Some{Any}(Core.finalizer(@lookup(frame, args[2]), @lookup(frame, args[3]), @lookup(frame, args[4])))
+        elseif nargs == 4
+            return Some{Any}(Core.finalizer(@lookup(frame, args[2]), @lookup(frame, args[3]), @lookup(frame, args[4]), @lookup(frame, args[5])))
+        else
+            return Some{Any}(Core.finalizer(getargs(args, frame)...))
+        end
     elseif @static isdefined(Core, :get_binding_type) && f === Core.get_binding_type
         if nargs == 2
             return Some{Any}(Core.get_binding_type(@lookup(frame, args[2]), @lookup(frame, args[3])))
diff --git a/test/check_builtins.jl b/test/check_builtins.jl
new file mode 100644
index 00000000..42b167cc
--- /dev/null
+++ b/test/check_builtins.jl
@@ -0,0 +1,12 @@
+using Test
+
+@static if VERSION >= v"1.9.0-"
+    @testset "Check builtin.jl consistency" begin
+        builtins_path = joinpath(@__DIR__, "..", "src", "builtins.jl")
+        old_builtins = read(builtins_path, String)
+        include("../bin/generate_builtins.jl")
+        new_builtins = read(builtins_path, String)
+        print(builtins_path, old_builtins)
+        @test old_builtins == new_builtins
+    end
+end
diff --git a/test/runtests.jl b/test/runtests.jl
index 783b658b..ba8f166e 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -2,6 +2,8 @@ using JuliaInterpreter
 using Test
 using Logging
 
+include("check_builtins.jl")
+
 @test isempty(detect_ambiguities(JuliaInterpreter, Base, Core))
 
 if !isdefined(@__MODULE__, :read_and_parse)