diff --git a/.github/workflows/testsuite.yaml b/.github/workflows/testsuite.yaml
index 3b9e2cf..6050f6f 100644
--- a/.github/workflows/testsuite.yaml
+++ b/.github/workflows/testsuite.yaml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        otp: ["24.3.4.16", "25.3.2.9", "26.2.2"]
+        otp: ["25.3.2.9", "26.2.2"]
         elixir: ["1.14.5", "1.15.7", "1.16.1"]
     services:
       ipfs:
diff --git a/README.md b/README.md
index 8938afa..3fea7e0 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,10 @@ More modules are under way. The following are implemented:
 * [IPLD](https://hex.pm/packages/ex_ipfs_ipld)
 * [IPNS](https://hex.pm/packages/ex_ipfs_ipns)
 
+## Requirements
+
+Only OTP 25 and newer are supported due to an underlying issue with SSL Certificate handling.
+
 ## Configuration
 
 The default should be OK, but you may override the API with the following environment variables.