diff --git a/TMessagesProj/src/main/java/org/telegram/messenger/partisan/PartisanVersion.java b/TMessagesProj/src/main/java/org/telegram/messenger/partisan/PartisanVersion.java
index f55fc52cc..382073589 100644
--- a/TMessagesProj/src/main/java/org/telegram/messenger/partisan/PartisanVersion.java
+++ b/TMessagesProj/src/main/java/org/telegram/messenger/partisan/PartisanVersion.java
@@ -1,6 +1,6 @@
 package org.telegram.messenger.partisan;
 
 public class PartisanVersion {
-    public static final String PARTISAN_VERSION_STRING = "4.2.2";
-    public static int PARTISAN_BUILD_VERSION = 1648;
+    public static final String PARTISAN_VERSION_STRING = "4.2.3";
+    public static int PARTISAN_BUILD_VERSION = 1649;
 }
diff --git a/TMessagesProj/src/main/java/org/telegram/messenger/partisan/voicechange/TesterSettingsParametersProvider.java b/TMessagesProj/src/main/java/org/telegram/messenger/partisan/voicechange/TesterSettingsParametersProvider.java
index 7b3cee923..7078534b3 100644
--- a/TMessagesProj/src/main/java/org/telegram/messenger/partisan/voicechange/TesterSettingsParametersProvider.java
+++ b/TMessagesProj/src/main/java/org/telegram/messenger/partisan/voicechange/TesterSettingsParametersProvider.java
@@ -13,18 +13,18 @@ import java.util.function.BiConsumer;
 public class TesterSettingsParametersProvider implements ParametersProvider {
     @Override
     public double getPitchFactor() {
-        return TesterSettings.pitchFactor.get().get();
+        return TesterSettings.pitchFactor.get().orElse(1.0f);
     }
 
     @Override
     public double getTimeStretchFactor() {
-        return TesterSettings.timeStretchFactor.get().get();
+        return TesterSettings.timeStretchFactor.get().orElse(1.0f);
     }
 
     @Override
     public Map<Integer, Integer> getSpectrumDistortionMap(int sampleRate) {
         Map<Integer, Integer> distortionMap = accumulateDistortionParams(
-                TesterSettings.spectrumDistorterParams.get().get(),
+                TesterSettings.spectrumDistorterParams.get().orElse(""),
                 new HashMap<>(),
                 (map, distortionParts) -> {
                     int fromHz = Integer.parseInt(distortionParts[0]);
@@ -39,7 +39,7 @@ public class TesterSettingsParametersProvider implements ParametersProvider {
     @Override
     public List<TimeDistorter.DistortionInterval> getTimeDistortionList() {
         List<TimeDistorter.DistortionInterval> distortionMap = accumulateDistortionParams(
-                TesterSettings.timeDistortionParams.get().get(),
+                TesterSettings.timeDistortionParams.get().orElse(""),
                 new ArrayList<>(),
                 (list, distortionParts) -> {
                     TimeDistorter.DistortionInterval interval = new TimeDistorter.DistortionInterval();
@@ -74,11 +74,11 @@ public class TesterSettingsParametersProvider implements ParametersProvider {
 
     @Override
     public double getF0Shift() {
-        return TesterSettings.f0Shift.get().get();
+        return TesterSettings.f0Shift.get().orElse(1.0f);
     }
 
     @Override
     public double getFormantRatio() {
-        return TesterSettings.formantRatio.get().get();
+        return TesterSettings.formantRatio.get().orElse(1.0f);
     }
 }