diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b7bb43a..dac81d8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
 
 **Attention**: Now requires Java 25
 
+Requires libsignal-client version 0.87.4.
+
 ### Breaking changes
 
 - Remove isRegistered method without parameters from Signal dbus interface, which always returned `true`
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 1db28adf..51604084 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -12,7 +12,7 @@ slf4j-api = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
 slf4j-jul = { module = "org.slf4j:jul-to-slf4j", version.ref = "slf4j" }
 logback = "ch.qos.logback:logback-classic:1.5.29"
 
-signalservice = "com.github.turasa:signal-service-java:2.15.3_unofficial_138"
+signalservice = "com.github.turasa:signal-service-java:2.15.3_unofficial_139"
 sqlite = "org.xerial:sqlite-jdbc:3.51.2.0"
 hikari = "com.zaxxer:HikariCP:7.0.2"
 junit-jupiter-bom = { module = "org.junit:junit-bom", version.ref = "junit" }
diff --git a/lib/src/main/java/org/asamk/signal/manager/helper/RecipientHelper.java b/lib/src/main/java/org/asamk/signal/manager/helper/RecipientHelper.java
index ddbb88c3..e84a3059 100644
--- a/lib/src/main/java/org/asamk/signal/manager/helper/RecipientHelper.java
+++ b/lib/src/main/java/org/asamk/signal/manager/helper/RecipientHelper.java
@@ -145,11 +145,8 @@ public class RecipientHelper {
         try {
             final var usernameLinkUrl = UsernameLinkUrl.fromUri(username);
             final var components = usernameLinkUrl.getComponents();
-            final var encryptedUsername = handleResponseException(dependencies.getUsernameApi()
-                    .getEncryptedUsernameFromLinkServerId(components.getServerId()));
-            final var link = new Username.UsernameLink(components.getEntropy(), encryptedUsername);
-
-            return Username.fromLink(link);
+            return handleResponseException(dependencies.getUsernameApi()
+                    .getDecryptedUsernameFromLinkServerIdAndEntropy(components.getServerId(), components.getEntropy()));
         } catch (UsernameLinkUrl.InvalidUsernameLinkException e) {
             return new Username(username);
         }
diff --git a/src/main/java/org/asamk/signal/BaseConfig.java b/src/main/java/org/asamk/signal/BaseConfig.java
index ea9b935b..dc19b461 100644
--- a/src/main/java/org/asamk/signal/BaseConfig.java
+++ b/src/main/java/org/asamk/signal/BaseConfig.java
@@ -8,7 +8,7 @@ public class BaseConfig {
     public static final String PROJECT_VERSION = BaseConfig.class.getPackage().getImplementationVersion();
 
     static final String USER_AGENT_SIGNAL_ANDROID = Optional.ofNullable(System.getenv("SIGNAL_CLI_USER_AGENT"))
-            .orElse("Signal-Android/8.0.3");
+            .orElse("Signal-Android/8.1.2");
     static final String USER_AGENT_SIGNAL_CLI = PROJECT_NAME == null
             ? "signal-cli"
             : PROJECT_NAME + "/" + PROJECT_VERSION;