diff --git a/pkgs/applications/networking/cluster/linkerd/default.nix b/pkgs/applications/networking/cluster/linkerd/default.nix
index da77ffad3afc..6d5d5d1bd4a3 100644
--- a/pkgs/applications/networking/cluster/linkerd/default.nix
+++ b/pkgs/applications/networking/cluster/linkerd/default.nix
@@ -64,8 +64,8 @@ in
     };
     edge = generic {
       channel = "edge";
-      version = "21.8.2";
-      sha256 = "sha256-jMYJ/mLWvuje4ZRuRbzMaqhz8kyn1bYGITJxkyw5Fyg=";
-      vendorSha256 = "sha256-18QB2GOxHfnP4GQaF0aohY5kEOg0xN/c+Sp33Ww/1uQ=";
+      version = "21.9.3";
+      sha256 = "0swqx4myvr24visj39icg8g90kj325pvf22bq447rnm0whq3cnyz";
+      vendorSha256 = "sha256-fMtAR66TwMNR/HCVQ9Jg3sJ0XBx2jUKDG7/ts0lEZM4=";
     };
   }