diff --git a/lib/instapaper/api/bookmarks.rb b/lib/instapaper/api/bookmarks.rb
index 88b1720..6da8570 100644
--- a/lib/instapaper/api/bookmarks.rb
+++ b/lib/instapaper/api/bookmarks.rb
@@ -68,7 +68,7 @@ module Instapaper
       # always text/html encoded as UTF-8.
       # @param bookmark_id [String] The id of the bookmark.
       def get_text(bookmark_id)
-        perform_post_with_unparsed_response('/api/1/bookmarks/get_text', {bookmark_id: bookmark_id})
+        perform_post_with_unparsed_response('/api/1/bookmarks/get_text', bookmark_id: bookmark_id)
       end
       alias_method :text, :get_text
     end
diff --git a/lib/instapaper/api/oauth.rb b/lib/instapaper/api/oauth.rb
index b72243b..1d9d6ce 100644
--- a/lib/instapaper/api/oauth.rb
+++ b/lib/instapaper/api/oauth.rb
@@ -4,7 +4,7 @@ module Instapaper
     module OAuth
       # Gets an OAuth access token for a user.
       def access_token(username, password)
-        response = perform_post_with_unparsed_response('/api/1/oauth/access_token', {x_auth_username: username, x_auth_password: password, x_auth_mode: 'client_auth'})
+        response = perform_post_with_unparsed_response('/api/1/oauth/access_token', x_auth_username: username, x_auth_password: password, x_auth_mode: 'client_auth')
         params = response.split('&')
         values = params.map { |part| part.split('=') }.flatten
         values.unshift('error') if values.length == 1