diff --git a/src/js/plyr.js b/src/js/plyr.js
index a563e345..197293a5 100644
--- a/src/js/plyr.js
+++ b/src/js/plyr.js
@@ -4103,12 +4103,12 @@
 
                         case 38:
                             // Arrow up
-                            player.increaseVolume();
+                            player.increaseVolume(0.1);
                             break;
 
                         case 40:
                             // Arrow down
-                            player.decreaseVolume();
+                            player.decreaseVolume(0.1);
                             break;
 
                         case 77: