diff --git a/pkgs/applications/networking/browsers/chromium/source/sources.nix b/pkgs/applications/networking/browsers/chromium/source/sources.nix
index 94755ea3ad4..3ce3dd813c1 100644
--- a/pkgs/applications/networking/browsers/chromium/source/sources.nix
+++ b/pkgs/applications/networking/browsers/chromium/source/sources.nix
@@ -7,10 +7,10 @@
     sha256bin64 = "1ycdp37ikdc9w4hp9qgpzjp47zh37g01ax8x4ack202vrv0dxhsh";
   };
   beta = {
-    version = "46.0.2490.52";
-    sha256 = "00sgb1pnp3fcijwdwpngnnddmn5nrbljsqz7f6dlnd63qfc91xjw";
-    sha256bin32 = "10jgcxc2zwffg8lxi55zl9apql6pyxh1g1n3z46gcb6j6am4y5m5";
-    sha256bin64 = "0i839ir4qcjl9llpqnwy793hvbdfh898x1izc5k93h7nm6i34ry9";
+    version = "46.0.2490.64";
+    sha256 = "1k2zir4rbs7hwdasbjpwyjr4ibis2vm6lx45bfm2r2f469mf3y2g";
+    sha256bin32 = "0j1xncws0r5z2rvvjsi0gxxmnslfcbiasaxr6bjhbxnzjv7chrd4";
+    sha256bin64 = "1m8vv3qh79an3719afz7n2ijqanf4cyxz2q4bzm512x52z5zipl7";
   };
   stable = {
     version = "45.0.2454.101";