diff --git a/man/signal-cli-dbus.5.adoc b/man/signal-cli-dbus.5.adoc
index c0b8fded..07117a5d 100755
--- a/man/signal-cli-dbus.5.adoc
+++ b/man/signal-cli-dbus.5.adoc
@@ -379,6 +379,19 @@ updateProfile(newName<s>, about <s>, aboutEmoji <s>, avatar<s>, remove<b>) -> <>
 
 Exceptions: Failure
 
+removePin() -> <>::
+
+Removes registration PIN protection.
+
+Exception: Failure
+
+setPin(pin<s>) -> <>::
+* pin               : PIN you set after registration (resets after 7 days of inactivity)
+
+Sets a registration lock PIN, to prevent others from registering your number.
+
+Exception: Failure
+
 version() -> version<s>::
 * version : Version string of signal-cli
 
diff --git a/src/main/java/org/asamk/Signal.java b/src/main/java/org/asamk/Signal.java
index 9e8b9cde..878323e4 100644
--- a/src/main/java/org/asamk/Signal.java
+++ b/src/main/java/org/asamk/Signal.java
@@ -95,6 +95,10 @@ public interface Signal extends DBusInterface {
             String name, String about, String aboutEmoji, String avatarPath, boolean removeAvatar
     ) throws Error.Failure;
 
+    void removePin();
+
+    void setPin(String registrationLockPin);
+
     String version();
 
     List<String> listNumbers();
diff --git a/src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java b/src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java
index 0a6193fa..c678a6ef 100644
--- a/src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java
+++ b/src/main/java/org/asamk/signal/dbus/DbusSignalImpl.java
@@ -27,6 +27,7 @@ import org.whispersystems.signalservice.api.groupsv2.GroupLinkNotActiveException
 import org.whispersystems.signalservice.api.messages.SendMessageResult;
 import org.whispersystems.signalservice.api.push.exceptions.UnregisteredUserException;
 import org.whispersystems.signalservice.api.util.InvalidNumberException;
+import org.whispersystems.signalservice.internal.contacts.crypto.UnauthenticatedResponseException;
 
 import java.io.File;
 import java.io.IOException;
@@ -465,6 +466,28 @@ public class DbusSignalImpl implements Signal {
         }
     }
 
+    @Override
+    public void removePin() {
+        try {
+            m.setRegistrationLockPin(Optional.absent());
+        } catch (UnauthenticatedResponseException e) {
+            throw new Error.Failure("Remove pin failed with unauthenticated response: " + e.getMessage());
+        } catch (IOException e) {
+            throw new Error.Failure("Remove pin error: " + e.getMessage());
+        }
+    }
+
+    @Override
+    public void setPin(String registrationLockPin) {
+        try {
+            m.setRegistrationLockPin(Optional.of(registrationLockPin));
+        } catch (UnauthenticatedResponseException e) {
+            throw new Error.Failure("Set pin error failed with unauthenticated response: " + e.getMessage());
+        } catch (IOException e) {
+            throw new Error.Failure("Set pin error: " + e.getMessage());
+        }
+    }
+
     // Provide option to query a version string in order to react on potential
     // future interface changes
     @Override