diff --git a/lib/mixing_card.dart b/lib/mixing_card.dart
index 84584fb..ad7fcae 100644
--- a/lib/mixing_card.dart
+++ b/lib/mixing_card.dart
@@ -138,6 +138,7 @@ class _MixingCardState extends State<MixingCard> {
               min: 0,
               max: 4,
               label: _sliderValue.toStringAsFixed(2),
+              allowedInteraction: SliderInteraction.slideThumb,
               onChangeStart: ((val) {
                 _sliderActive = true;
               }),
diff --git a/lib/port_connection_card.dart b/lib/port_connection_card.dart
index 7c55631..b34d0ce 100644
--- a/lib/port_connection_card.dart
+++ b/lib/port_connection_card.dart
@@ -67,6 +67,7 @@ class _PortConnectionCardState extends State<PortConnectionCard> {
                     max: 4,
                     value: _sliderValue,
                     label: _sliderValue.toStringAsFixed(2),
+                    allowedInteraction: SliderInteraction.slideThumb,
                     onChangeStart: ((val) {
                       _sliderActive = true;
                     }),