diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b0cb372..8a3021f 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        otp: [25]
+        otp: [25, 26, 27]
         rebar: [3.24]
     steps:
     - uses: actions/checkout@v4
@@ -33,7 +33,7 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        otp: [25]
+        otp: [25, 26, 27]
         rebar: [3.24]
     steps:
     - uses: actions/checkout@v4
diff --git a/rebar.config.script b/rebar.config.script
new file mode 100644
index 0000000..46d8ba1
--- /dev/null
+++ b/rebar.config.script
@@ -0,0 +1,10 @@
+case string:to_integer(
+    erlang:system_info(otp_release))
+of
+    {N, _} when N >= 26 ->
+        {value, {dialyzer, DOpts}, Config} = lists:keytake(dialyzer, 1, CONFIG),
+        {value, {warnings, Warnings}, OtherDOpts} = lists:keytake(warnings, 1, DOpts),
+        [{dialyzer, [{warnings, [no_unknown | Warnings]} | OtherDOpts]} | Config];
+    _ ->
+        CONFIG
+end.
diff --git a/test/typer_core_SUITE.erl b/test/typer_core_SUITE.erl
index 5eed629..c667c35 100644
--- a/test/typer_core_SUITE.erl
+++ b/test/typer_core_SUITE.erl
@@ -36,8 +36,7 @@ empty(_) ->
 
 bad_plt(_) ->
     ct:comment("With an invalid plt.. we get an error"),
-    [{abort,
-      <<"typer: Dialyzer's PLT is missing or is not up-to-date; please (re)create it">>}] =
+    [{abort, <<"typer: ", _Message/binary>>}] =
         run_typer(#{files_r => [abs_test_path("single_file")], plt => "bad.plt"}),
     {comment, ""}.