diff --git a/README.md b/README.md
index 7a46326..4195312 100644
--- a/README.md
+++ b/README.md
@@ -150,7 +150,7 @@ $factory->createClient($url)->then(
         // client connected (and authenticated)
     },
     function (Exception $e) {
-        // an error occured while trying to connect or authorize client
+        // an error occurred while trying to connect or authorize client
     }
 );
 ```
@@ -355,7 +355,7 @@ $sender->ping()->then(
         // response received for ping action
     },
     function (Exception $e) {
-        // an error occured while executing the action
+        // an error occurred while executing the action
         
         if ($e instanceof Clue\React\Ami\Protocol\ErrorException) {
             // we received a valid error response (such as authorization error)
diff --git a/src/Factory.php b/src/Factory.php
index 5345283..1169a27 100644
--- a/src/Factory.php
+++ b/src/Factory.php
@@ -64,7 +64,7 @@ public function __construct(LoopInterface $loop = null, ConnectorInterface $conn
      *         // client connected (and authenticated)
      *     },
      *     function (Exception $e) {
-     *         // an error occured while trying to connect or authorize client
+     *         // an error occurred while trying to connect or authorize client
      *     }
      * );
      * ```
diff --git a/tests/ActionSenderTest.php b/tests/ActionSenderTest.php
index f1801c7..12af822 100644
--- a/tests/ActionSenderTest.php
+++ b/tests/ActionSenderTest.php
@@ -23,7 +23,7 @@ public function testCollectingSIPEvents()
 
         $promise = $collector->sipPeers();
 
-        // save resolved result for comparisions
+        // save resolved result for comparisons
         $resolved = null;
         $promise->then(function($result) use (&$resolved) {
             $resolved = $result;