diff --git a/static/build.html b/static/build.html
index 407406ec..945d51ce 100644
--- a/static/build.html
+++ b/static/build.html
@@ -927,11 +927,11 @@ export PATH="$HOME/android/sdk/cmdline-tools/latest/bin:$PATH"</pre>
                 <p>For running the Compatibility Test Suite you'll also need the build-tools for
                 aapt:</p>
 
-                <pre>sdkmanager 'build-tools;30.0.2'</pre>
+                <pre>sdkmanager 'build-tools;31.0.0'</pre>
 
                 <p>Add the <code>build-tools</code> executables to your <code>PATH</code>:</p>
 
-                <pre>export PATH="$HOME/android/sdk/build-tools/30.0.2:$PATH"</pre>
+                <pre>export PATH="$HOME/android/sdk/build-tools/31.0.0:$PATH"</pre>
 
                 <p>For working with native code, you need the NDK:</p>