diff --git a/README b/README
index 788ff11..19e5378 100644
--- a/README
+++ b/README
@@ -7,7 +7,7 @@
 ------
 
 The prebuilt libwebviewchromium.so included in these APKs is built from Chromium
-release tag 58.0.3029.125, using the GN build tool. To match our build settings, set:
+release tag 61.0.3163.98, using the GN build tool. To match our build settings, set:
 
 target_os="android"
 is_debug=false
@@ -24,9 +24,9 @@
 
 ------
 
-Due to WebView API changes in the O release, the Java code in the Chromium 
-3029_108 branch is not compatible with O. We'll be working on upstreaming 
-the O-specific Java changes to Chromium once the final O SDK is released.
+Due to WebView API changes in the O-MR1 release, the Java code in the Chromium
+3163 branch is not compatible with O-MR1. We'll be working on upstreaming
+the O-MR1 specific Java changes to Chromium once the final O-MR1 SDK is released.
 
 ------