diff --git a/composer.json b/composer.json
index 87a1473..4734af2 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "psr/log": "^1.0"
   },
   "require-dev": {
-    "mockery/mockery": "^1.0",
+    "mockery/mockery": "^1.3.1",
     "phpunit/phpunit": "^8.5.52",
     "squizlabs/php_codesniffer": "^3.3.1",
     "graze/standards": "^2",
diff --git a/composer.lock b/composer.lock
index 54b75ab..a25f828 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e5047e547f24230866ea196de65cd0da",
+    "content-hash": "3984bf50996842cda23d15d2bbc0d428",
     "packages": [
         {
             "name": "graze/data-structure",