diff --git a/oauth2_http/java/com/google/auth/oauth2/UserAuthorizer.java b/oauth2_http/java/com/google/auth/oauth2/UserAuthorizer.java
index ed55f47af..7b041a319 100644
--- a/oauth2_http/java/com/google/auth/oauth2/UserAuthorizer.java
+++ b/oauth2_http/java/com/google/auth/oauth2/UserAuthorizer.java
@@ -315,10 +315,14 @@ public void revokeAuthorization(String userId) throws IOException {
         OAuth2Utils.validateOptionalString(tokenJson, "refresh_token", TOKEN_STORE_ERROR);
     // If both tokens are present, either can be used
     String revokeToken = (refreshToken != null) ? refreshToken : accessTokenValue;
+
     GenericUrl revokeUrl = new GenericUrl(OAuth2Utils.TOKEN_REVOKE_URI);
-    revokeUrl.put("token", revokeToken);
+    GenericData genericData = new GenericData();
+    genericData.put("token", revokeToken);
+    UrlEncodedContent content = new UrlEncodedContent(genericData);
+
     HttpRequestFactory requestFactory = transportFactory.create().createRequestFactory();
-    HttpRequest tokenRequest = requestFactory.buildGetRequest(revokeUrl);
+    HttpRequest tokenRequest = requestFactory.buildPostRequest(revokeUrl, content);
     tokenRequest.execute();
 
     if (deleteTokenException != null) {
diff --git a/oauth2_http/javatests/com/google/auth/oauth2/MockTokenServerTransport.java b/oauth2_http/javatests/com/google/auth/oauth2/MockTokenServerTransport.java
index add74834a..297b497b4 100644
--- a/oauth2_http/javatests/com/google/auth/oauth2/MockTokenServerTransport.java
+++ b/oauth2_http/javatests/com/google/auth/oauth2/MockTokenServerTransport.java
@@ -257,7 +257,7 @@ public LowLevelHttpResponse execute() throws IOException {
       return new MockLowLevelHttpRequest(url) {
         @Override
         public LowLevelHttpResponse execute() throws IOException {
-          Map<String, String> parameters = TestUtils.parseQuery(query);
+          Map<String, String> parameters = TestUtils.parseQuery(this.getContentAsString());
           String token = parameters.get("token");
           if (token == null) {
             throw new IOException("Token to revoke not found.");