diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ea14db1..fb68d37 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -30,6 +30,7 @@ jobs:
 
       - name: Build
         run: |
+          luarocks install tl --dev --branch=next-compat-api
           luarocks install luafilesystem # TODO: luarocks seems to grab the wrong version with --dev
           luarocks make --dev
           luarocks install busted
diff --git a/cyan-dev-1.rockspec b/cyan-dev-1.rockspec
index 55d9f6d..a9e4fd8 100644
--- a/cyan-dev-1.rockspec
+++ b/cyan-dev-1.rockspec
@@ -14,7 +14,6 @@ description = {
 dependencies = {
    "argparse",
    "luafilesystem",
-   "tl ~> 0.15",
    "luasystem >= 0.3.0",
 }
 build = {
diff --git a/tlconfig.lua b/tlconfig.lua
index a4531b7..e961347 100644
--- a/tlconfig.lua
+++ b/tlconfig.lua
@@ -6,6 +6,7 @@ return {
    warning_error = { "unused", "redeclaration" },
 
    gen_compat = "required",
+   feat_arity = "off",
 
    scripts = {
       build = {