diff --git a/pkgs/development/tools/sslmate/default.nix b/pkgs/development/tools/sslmate/default.nix
index 2371600a7f4f..146ff9df76c2 100644
--- a/pkgs/development/tools/sslmate/default.nix
+++ b/pkgs/development/tools/sslmate/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "sslmate";
-  version = "1.8.0";
+  version = "1.9.0";
 
   src = fetchurl {
     url = "https://packages.sslmate.com/other/${pname}-${version}.tar.gz";
-    sha256 = "sha256-A1TkGi6b1psWflN0ogM1r/pYSVXcOi6aQEb6xtOsAsk=";
+    sha256 = "sha256-PkASJIRJH1kXjegOFMz36QzqT+qUBWslx/iavjFoW5g=";
   };
 
   makeFlags = [ "PREFIX=$(out)" ];