diff --git a/.travis.yml b/.travis.yml
index cf7f6716..29fa0279 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,7 +22,6 @@ script:
 
 jobs:
   allow_failures:
-    - php: 7.4snapshot
     - php: nightly
 
   include:
diff --git a/composer.json b/composer.json
index 852db15f..7b9bf4ca 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
     },
     "require": {
         "php": "^7.3",
-        "ext-json": "^1.7",
+        "ext-json": "*",
         "fig/http-message-util": "^1.1",
         "psr/http-factory": "^1.0",
         "psr/http-server-middleware": "^1.0"