diff --git a/html4j/src/test/java/org/teavm/html4j/test/KnockoutFXTest.java b/html4j/src/test/java/org/teavm/html4j/test/KnockoutFXTest.java
index bf3306e5d..54ee419d8 100644
--- a/html4j/src/test/java/org/teavm/html4j/test/KnockoutFXTest.java
+++ b/html4j/src/test/java/org/teavm/html4j/test/KnockoutFXTest.java
@@ -220,7 +220,7 @@ public final class KnockoutFXTest extends KnockoutTCK implements Transfer {
         defineFunction(name, data -> {
             removeFunction(name);
             HTMLDocument.current().getElementById("jsonp-" + name).delete();
-            call.notifySuccess(call);
+            call.notifySuccess(data);
         });
     }
 
diff --git a/pom.xml b/pom.xml
index bf1e6e088..889de6ddd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -66,7 +66,7 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <sonatypeOssDistMgmtSnapshotsUrl>https://oss.sonatype.org/content/repositories/snapshots/</sonatypeOssDistMgmtSnapshotsUrl>
-    <html4j.version>1.2</html4j.version>
+    <html4j.version>1.2.3</html4j.version>
     <jetty.version>9.2.1.v20140609</jetty.version>
     <slf4j.version>1.7.7</slf4j.version>
     <selenium.version>2.47.2</selenium.version>