diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3306dc428..2f5d5a165 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,8 +18,8 @@ jobs:
           - otp_version: 25.3
             elixir_version: 1.14
 
-          - otp_version: "26.2.1"
-            elixir_version: 1.16
+          - otp_version: "27.2"
+            elixir_version: 1.18
 
     runs-on: ubuntu-latest
     name: test
@@ -64,6 +64,6 @@ jobs:
       - uses: actions/checkout@v4
       - uses: erlef/setup-beam@v1
         with:
-          otp-version: "26.2.1"
-          elixir-version: 1.16
+          otp-version: "27.2"
+          elixir-version: 1.18
       - run: mix format --check-formatted
diff --git a/lib/explorer/query.ex b/lib/explorer/query.ex
index e1ae9bbd1..ab3982ba1 100644
--- a/lib/explorer/query.ex
+++ b/lib/explorer/query.ex
@@ -320,7 +320,7 @@ defmodule Explorer.Query do
     then: 2
   ]
 
-  @kernel_only kernel_only -- kernel_only -- kernel_all
+  @kernel_only kernel_only -- (kernel_only -- kernel_all)
 
   @doc """
   Returns a "query-backed" `Explorer.DataFrame` for use in queries.