diff --git a/intercom-java/src/main/java/io/intercom/api/HttpClient.java b/intercom-java/src/main/java/io/intercom/api/HttpClient.java
index 9905643..473ce4b 100644
--- a/intercom-java/src/main/java/io/intercom/api/HttpClient.java
+++ b/intercom-java/src/main/java/io/intercom/api/HttpClient.java
@@ -235,14 +235,10 @@ private HttpURLConnection prepareConnection(HttpURLConnection conn) {
     }
 
     private Map<String, String> createAuthorizationHeaders() {
-        headers.put("Authorization", "Basic " + generateAuthString(Intercom.getToken(),""));
+        headers.put("Authorization", "Bearer " + Intercom.getToken());
         return headers;
     }
 
-    private String generateAuthString(String username, String password) {
-        return Base64.encodeBase64String((username + ":" + password).getBytes());
-    }
-
     private Map<String, String> createHeaders() {
         headers.put("User-Agent", USER_AGENT);
         headers.put("X-Client-Platform-Details", CLIENT_AGENT_DETAILS);