Change type of constraints.

Author: Michał Jusięga

composer.json

@@ -38,7 +38,7 @@
 
 "psr/log": "^1.0",
 "setasign/fpdi": "^2.1",
-"paragonie/random_compat": "~1.4|~2.0|~9.99",
+"paragonie/random_compat": "^1.4|^2.0|^9.99.99",
 "myclabs/deep-copy": "^1.7"
 
 },