diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index b9ed5ed..bdcb03f 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -16,8 +16,8 @@ jobs:
 
     strategy:
       matrix:
-        otp: ['24', '25', '26', '27']
-        elixir: ['1.15', '1.16', '1.17', '1.18']
+        otp: ['25', '26', '27']
+        elixir: ['1.17']
 
     steps:
     - uses: actions/checkout@v4
diff --git a/.github/workflows/elixir_unlocked.yml b/.github/workflows/elixir_unlocked.yml
index 82c8d50..63bffc9 100644
--- a/.github/workflows/elixir_unlocked.yml
+++ b/.github/workflows/elixir_unlocked.yml
@@ -18,8 +18,8 @@ jobs:
 
     strategy:
       matrix:
-        otp: ['24', '25', '26', '27']
-        elixir: ['1.15', '1.16', '1.17', '1.18']
+        otp: ['25', '26', '27']
+        elixir: ['1.17']
 
     steps:
     - uses: actions/checkout@v4