diff --git a/primitiveFTPd/build.gradle b/primitiveFTPd/build.gradle
index 39393a6c..191a35e5 100644
--- a/primitiveFTPd/build.gradle
+++ b/primitiveFTPd/build.gradle
@@ -13,7 +13,7 @@ buildscript {
 repositories {
     google()
     mavenCentral()
-    jcenter()
+    maven { url 'https://jitpack.io' }
 }
 
 apply plugin: 'com.android.application'
@@ -98,7 +98,7 @@ dependencies {
     implementation 'androidx.coordinatorlayout:coordinatorlayout:1.2.0'
     implementation 'androidx.preference:preference:1.2.1'
     implementation 'com.google.android.material:material:1.6.0'
-    implementation 'eu.chainfire:libsuperuser:1.0.0.201704021214'
+    implementation 'eu.chainfire:libsuperuser:1.1.1'
     implementation 'org.apache.httpcomponents.client5:httpclient5:5.0'
     implementation ('me.dm7.barcodescanner:zxing:1.9.8') {
         exclude group: 'com.android.support'
diff --git a/primitiveFTPd/src/org/primftpd/filesystem/RootFile.java b/primitiveFTPd/src/org/primftpd/filesystem/RootFile.java
index 6eded851..749a2b81 100644
--- a/primitiveFTPd/src/org/primftpd/filesystem/RootFile.java
+++ b/primitiveFTPd/src/org/primftpd/filesystem/RootFile.java
@@ -127,13 +127,16 @@ public List<T> listFiles() {
         final List<LsOutputBean> beans = new ArrayList<>();
         shell.addCommand("ls -la " + escapePath(absPath), 0, new Shell.OnCommandLineListener() {
             @Override
-            public void onLine(String s) {
+            public void onSTDOUT(String s) {
                 LsOutputBean bean = parser.parseLine(s);
                 if (bean != null) {
                     beans.add(bean);
                 }
             }
             @Override
+            public void onSTDERR(String s) {
+            }
+            @Override
             public void onCommandResult(int i, int i1) {
             }
         });
@@ -340,7 +343,10 @@ protected boolean runCommand(String cmd) {
         final Boolean[] wrapper = new Boolean[1];
         shell.addCommand(cmd, 0, new Shell.OnCommandLineListener() {
             @Override
-            public void onLine(String s) {
+            public void onSTDOUT(String s) {
+            }
+            @Override
+            public void onSTDERR(String s) {
             }
             @Override
             public void onCommandResult(int i, int i1) {
@@ -358,11 +364,14 @@ protected String readCommandOutput(String cmd) {
             public void onCommandResult(int i, int i1) {
             }
             @Override
-            public void onLine(String s) {
+            public void onSTDOUT(String s) {
                 if (s != null) {
                     sb.append(s);
                 }
             }
+            @Override
+            public void onSTDERR(String s) {
+            }
         });
         shell.waitForIdle();
         String result = sb.toString();
diff --git a/primitiveFTPd/src/org/primftpd/filesystem/RootFileSystemView.java b/primitiveFTPd/src/org/primftpd/filesystem/RootFileSystemView.java
index a82b8923..c9ae2e1f 100644
--- a/primitiveFTPd/src/org/primftpd/filesystem/RootFileSystemView.java
+++ b/primitiveFTPd/src/org/primftpd/filesystem/RootFileSystemView.java
@@ -81,10 +81,13 @@ protected LsOutputBean findFinalLinkTarget(LsOutputBean bean, final LsOutputPars
         while (tmp.isLink()) {
             shell.addCommand("ls -lad \"" + tmp.getLinkTarget() + "\"", 0, new Shell.OnCommandLineListener() {
                 @Override
-                public void onLine(String s) {
+                public void onSTDOUT(String s) {
                     wrapper[0] = parser.parseLine(s);
                 }
                 @Override
+                public void onSTDERR(String s) {
+                }
+                @Override
                 public void onCommandResult(int i, int i1) {
                 }
             });