diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bde807d..595b103 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,9 +17,18 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, ubuntu-20.04]
-        elixir_version: [1.15, 1.16]
-        otp_version: [24, 25, 26]
+        os: [ubuntu-22.04]
+        elixir_version: [1.14, 1.15, 1.16, 1.17]
+        otp_version: [ 25, 26, 27]
+        exclude:
+          - otp_version: 26
+            elixir_version: 1.14
+          - otp_version: 27
+            elixir_version: 1.14
+          - otp_version: 27
+            elixir_version: 1.15
+          - otp_version: 27
+            elixir_version: 1.16
     steps:
       - uses: actions/checkout@v4