Reverted composer until we can figure out wtf happened

composer.json

@@ -18,6 +18,7 @@
     "ext-mbstring": "*",
     "ext-pdo": "*",
     "adldap2/adldap2": "^10.2",
+    "alek13/slack": "^1.12",
     "bacon/bacon-qr-code": "^1.0",
     "barryvdh/laravel-cors": "^0.11.3",
     "barryvdh/laravel-debugbar": "^3.2",
@@ -42,7 +43,6 @@
     "league/csv": "^9.5",
     "league/flysystem-aws-s3-v3": "^1.0",
     "league/flysystem-cached-adapter": "^1.0",
-    "alek13/slack": "^1.7",
     "neitanod/forceutf8": "^2.0",
     "nesbot/carbon": "^2.32",
     "onelogin/php-saml": "^3.4",