diff --git a/.travis.yml b/.travis.yml
index 9d9b4a0..67a7ddf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ php:
   - '5.6'
   - '7.0'
   - '7.1'
-  - '7.4'
+  - '7.4.0'
   - hhvm-3.30
 
 install: