Version constraint on API wrapper was catastrophic

composer.json

@@ -25,7 +25,7 @@
   },
   "minimum-stability": "dev",
   "require": {
-    "fastglass/sendgrid": ">=1.0.10",
+    "fastglass/sendgrid": "~1.0.10",
     "html2text/html2text": "^4.3.1"
   }
 }