diff --git a/.travis.yml b/.travis.yml
index acaa09a..2d1c97e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,8 @@ php:
   - 5.6
   - 7.0
   - 7.1
+  - 7.2
+  - 7.3
   - hhvm
 
 matrix:
diff --git a/composer.json b/composer.json
index 087dd14..e2a74b1 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
     "require": {
         "php": ">=5.5.0",
         "psr/http-message": "^1.0",
-        "paragonie/random_compat": "^1.1|^2.0"
+        "paragonie/random_compat": "^1.1|^2.0|^9.99"
     },
     "require-dev": {
         "slim/slim": "~3.0",