diff --git a/pkgs/applications/version-management/mercurial/default.nix b/pkgs/applications/version-management/mercurial/default.nix
index 3780be96fd6f..eea3e7afb774 100644
--- a/pkgs/applications/version-management/mercurial/default.nix
+++ b/pkgs/applications/version-management/mercurial/default.nix
@@ -13,11 +13,11 @@ let
 
   self = python3Packages.buildPythonApplication rec {
     pname = "mercurial";
-    version = "5.9.1";
+    version = "5.9.3";
 
     src = fetchurl {
       url = "https://mercurial-scm.org/release/mercurial-${version}.tar.gz";
-      sha256 = "09wzyhyajy1dbp5kxkmvs9x8jk964wri19p5jgf83mv27i1zkvrj";
+      sha256 = "sha256-O0P2iXetD6dap/HlyPCoO6k1YhqyOWEpq7SY5W0b4I4=";
     };
 
     format = "other";
@@ -27,7 +27,7 @@ let
     cargoDeps = if rustSupport then rustPlatform.fetchCargoTarball {
       inherit src;
       name = "${pname}-${version}";
-      sha256 = "1f7q0kmp46rphw38rlzh1yvpn3rdjdnzzbxzjkrjks8n1gm8baca";
+      sha256 = "sha256:1d911jaawdrcv2mdhlp2ylr10791zj7dhb69aiw5yy7vn7gry82n";
       sourceRoot = "${pname}-${version}/rust";
     } else null;
     cargoRoot = if rustSupport then "rust" else null;