diff --git a/app/build.gradle b/app/build.gradle
index 85525e23..b56ed02f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -68,7 +68,7 @@ dependencies {
     compile 'com.android.support:design:23.3.0'
     compile 'com.github.tony19:logback-android-classic:1.1.1-4'
     compile 'org.slf4j:slf4j-api:1.7.7'
-    compile 'com.github.PhilJay:MPAndroidChart:01d8b246869f3d9517b615814d8ecb30cbfebdf0'
+    compile 'com.github.PhilJay:MPAndroidChart:3398cf4462bc7f49bb1156ef22040e8a0d63369f'
     compile 'com.github.pfichtner:durationformatter:0.1.1'
     compile 'de.cketti.library.changelog:ckchangelog:1.2.2'
     compile 'net.e175.klaus:solarpositioning:0.0.9'
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java
index ead1bb1d..d9772f20 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java
@@ -100,6 +100,7 @@ public class SleepChartFragment extends AbstractChartFragment {
         mSleepAmountChart.setData(mcd.getPieData().getPieData());
 
         mActivityChart.setData(null); // workaround for https://github.com/PhilJay/MPAndroidChart/issues/2317
+        xIndexFormatter.setxLabels(mcd.getChartsData().getXLabels());
         mActivityChart.setData(mcd.getChartsData().getCombinedData());
     }
 
@@ -165,8 +166,8 @@ public class SleepChartFragment extends AbstractChartFragment {
         y.setDrawGridLines(false);
 //        y.setDrawLabels(false);
         // TODO: make fixed max value optional
-        y.setAxisMaxValue(1f);
-        y.setAxisMinValue(0);
+        y.setAxisMaximum(1f);
+        y.setAxisMinimum(0);
         y.setDrawTopYLabelEntry(false);
         y.setTextColor(CHART_TEXT_COLOR);