diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f3637d7..a91272d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        otp_version: [19, 20, 21, 22, 23]
+        otp_version: [20, 21, 22, 23]
 
     steps:
     - uses: actions/checkout@v4