diff --git a/.travis.yml b/.travis.yml
index 26f36f23d7c..5a5364ea6f1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,7 @@ addons:
 env:
   global:
     - LUAROCKS=2.4.3
-    - OPENSSL=1.1.1
+    - OPENSSL=1.1.1a
     - OPENRESTY_BASE=1.13.6.2
     - OPENRESTY_LATEST=1.13.6.2
     - OPENRESTY=$OPENRESTY_BASE