diff --git a/tahoe-lafs.nix b/tahoe-lafs.nix
index 25caabdae4da900e6fb778df26bfab1e040f5ca1..24a591e67545b943131d82c430a1792d6305204e 100644
--- a/tahoe-lafs.nix
+++ b/tahoe-lafs.nix
@@ -11,7 +11,7 @@ python.pkgs.buildPythonPackage rec {
     owner = "LeastAuthority";
     repo = "tahoe-lafs";
     # HEAD of an integration branch for all of the storage plugin stuff.  Last
-    # updated August 23 2019.
+    # updated October 4 2019.
     rev = "8c1f536ba4fbc01f3bc5f08412edbefc56ff7037";
     sha256 = "17d7pkbsgss3rhqf7ac7ylzbddi555rnkzz48zjqwq1zx1z2jhy6";
   };