diff --git a/install.sh b/install.sh
index f1647a15f..4228bc062 100755
--- a/install.sh
+++ b/install.sh
@@ -103,8 +103,11 @@ main() {
     1.19.*)
       [ "${elixir_otp_release}" -ge 28 ] && elixir_otp_release=28
       ;;
+    1.20.*)
+      [ "${elixir_otp_release}" -ge 29 ] && elixir_otp_release=29
+      ;;
     *)
-      [ "${elixir_otp_release}" -ge 28 ] && elixir_otp_release=28
+      [ "${elixir_otp_release}" -ge 29 ] && elixir_otp_release=29
       ;;
   esac
 
@@ -295,4 +298,4 @@ unzip_available() {
   which unzip >/dev/null 2>&1
 }
 
-main "$@"
+main "$@"
\ No newline at end of file