diff --git a/.travis.yml b/.travis.yml
index fd777fa..993c7ae 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,9 @@
 language: php
 php:
-  - 5.6
   - 7.0
   - 7.1
   - 7.2
+  - 5.6
   - hhvm
 
 dist: trusty
@@ -23,10 +23,29 @@ env:
   - PHPSECLIB="2.0.11"
 
 matrix:
-  allow_failures:
+  exclude:
     - php: 7.1
+    - env: PHPSECLIB="2.0.0"
     - php: 7.2
-    
+    - env: PHPSECLIB="2.0.0"
+    - php: 7.1
+    - env: PHPSECLIB="2.0.1"
+    - php: 7.2
+    - env: PHPSECLIB="2.0.1"
+    - php: 7.1
+    - env: PHPSECLIB="2.0.2"
+    - php: 7.2
+    - env: PHPSECLIB="2.0.2"
+    - php: 7.1
+    - env: PHPSECLIB="2.0.3"
+    - php: 7.2
+    - env: PHPSECLIB="2.0.3"
+    - php: 7.2
+    - env: PHPSECLIB="2.0.4"
+    - php: 7.2
+    - env: PHPSECLIB="2.0.5"
+    - php: 7.2
+    - env: PHPSECLIB="2.0.6"
   fast_finish: true
 
 before_script: 'sed -i "s/\"phpseclib\/phpseclib\": \"[^\"]*/\"phpseclib\/phpseclib\": \"$PHPSECLIB/" composer.json && composer install --prefer-source --dev'