diff --git a/.travis.yml b/.travis.yml
index 944f610..c0b1791 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,13 +9,21 @@ before_install:
 jobs:
   include:
   - stage: lint
-    php: 5.6
+    php: 7.0
+    script:
+    - "./bin/lint.sh"
+  - stage: lint
+    php: 7.1
     script:
     - "./bin/lint.sh"
   - stage: lint
     php: 7.2
     script:
     - "./bin/lint.sh"
+  - stage: lint
+    php: 7.3
+    script:
+    - "./bin/lint.sh"
   - stage: deploy
     php: 7.2
     script: