diff --git a/src/gwt/build.xml b/src/gwt/build.xml
index 27ffe33..4218678 100644
--- a/src/gwt/build.xml
+++ b/src/gwt/build.xml
@@ -139,11 +139,6 @@
       <echo message="panmirror minify: ${panmirror.minify}"/>
 
       <mkdir dir="${panmirror.build.dir}"/>
-      <exec executable="${yarn.bin}" dir="${panmirror.dir}" resolveexecutable="true" failonerror="true">
-         <arg value="install"/>
-         <arg value="--network-timeout"/>
-         <arg value="240000"/>
-      </exec>
       <exec executable="${yarn.bin}" dir="${panmirror.dir}" resolveexecutable="true" failonerror="true">
          <arg value="build"/>
          <arg value="--minify"/>