diff --git a/index.html b/index.html
index 261422f..2afad0f 100644
--- a/index.html
+++ b/index.html
@@ -444,6 +444,7 @@
                                            class="range range-success range-tasks"
                                            min="0"
                                            max="100"
+                                           step="5"
                                            v-model="task.percentDone"
                                            @change="checkForCompletionOfTask(task)">
                                 </div>