diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f0aeac2..5d471da 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,7 @@ jobs:
 
     strategy:
       matrix:
-        release: [R2021b, R2023b]
+        release: R2021b
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps: