diff --git a/build.xml b/build.xml
index 3f8a28af6..8950fbdb4 100644
--- a/build.xml
+++ b/build.xml
@@ -20,7 +20,7 @@
     </target>
 
     <target name="antlr4-init" depends="basic-init">
-        <property name="antlr4.version" value="4.2"/>
+        <property name="antlr4.version" value="4.2.2"/>
         <property name="antlr4.jar.name" value="antlr-${antlr4.version}-complete.jar"/>
         <property name="antlr4.jar" value="${lib.dir}/${antlr4.jar.name}"/>
         <mkdir dir="${lib.dir}"/>
@@ -32,7 +32,7 @@
     </target>
 
     <target name="build-init" depends="basic-init">
-        <property name="version" value="4.2.3-dev"/>
+        <property name="version" value="4.3"/>
         <property name="build.sysclasspath" value="ignore"/>
         <property name="install.root.dir" value="${dist.dir}/antlr-${version}" />
         <property name="jar.file" value="${dist.dir}/antlr-${version}-complete.jar" />