diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index d8044ce..6704c0a 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -13,26 +13,14 @@ jobs:
       fail-fast: false
       matrix:
         pair:
-          - otp-version: '20'
-            elixir-version: '1.5'
-          - otp-version: '20'
-            elixir-version: '1.6'
-          - otp-version: '21'
-            elixir-version: '1.7'
-          - otp-version: '21'
-            elixir-version: '1.8'
-          - otp-version: '22'
-            elixir-version: '1.9'
-          - otp-version: '22'
-            elixir-version: '1.10'
-          - otp-version: '23'
-            elixir-version: '1.11'
           - otp-version: '24'
             elixir-version: '1.12'
           - otp-version: '24'
             elixir-version: '1.13'
           - otp-version: '24'
             elixir-version: '1.14'
+          - otp-version: '24'
+            elixir-version: '1.15'
 
     steps:
     - uses: actions/checkout@v2