diff --git a/src/views/trials/trials-panel/reading/dicoms3D/components/Segmentations.vue b/src/views/trials/trials-panel/reading/dicoms3D/components/Segmentations.vue
index 61994fb3..b55d7595 100644
--- a/src/views/trials/trials-panel/reading/dicoms3D/components/Segmentations.vue
+++ b/src/views/trials/trials-panel/reading/dicoms3D/components/Segmentations.vue
@@ -127,7 +127,7 @@
                     </div>
                     <div class="SegmentConfig">
                         <span>{{ $t('trials:reading:Segmentations:title:Border') }}</span>
-                        <el-slider v-model="SegmentConfig.outlineWidth" show-input :step="0.5" :max="10"
+                        <el-slider v-model="SegmentConfig.outlineWidth" show-input :step="1" :max="10"
                             input-size="mini" :show-input-controls="false" />
                     </div>
                     <span class="line" />