Fix composer.json lint errors

composer.json

@@ -9,10 +9,10 @@
     "ezyang/htmlpurifier": "^4.10",
     "indieweb/link-rel-parser": "0.1.*",
     "dg/twitter-php": "3.6.*",
-    "p3k/timezone": "*",
-    "p3k/http": ">=0.1.11",
+    "p3k/timezone": "~0.1.0",
+    "p3k/http": "~0.1.11",
     "cebe/markdown": "1.1.*",
-    "p3k/picofeed": ">=0.1.39",
+    "p3k/picofeed": "~0.1.40",
     "masterminds/html5": "^2.3"
   },
   "autoload": {

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": "61cbed43047036764edd6eb8d53492b4",
+    "content-hash": "1e861fcf3e3f352fc91a011ff1bae693",
     "packages": [
         {
             "name": "cebe/markdown",