diff --git a/CHANGELOG.md b/CHANGELOG.md
index 716657f..f1c99aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 1.10.2
+
+* updated HTTP client data requests issue with unicode characters
+
 ## 1.10.1
 
 * updated error handling to provide HTTP status codes
diff --git a/src/main/java/com/postmarkapp/postmark/client/HttpClient.java b/src/main/java/com/postmarkapp/postmark/client/HttpClient.java
index 06f1f01..e1efa73 100644
--- a/src/main/java/com/postmarkapp/postmark/client/HttpClient.java
+++ b/src/main/java/com/postmarkapp/postmark/client/HttpClient.java
@@ -10,7 +10,6 @@
 import org.apache.hc.core5.util.Timeout;
 
 import java.io.IOException;
-import java.util.Arrays;
 import java.util.Map;
 
 /**