diff --git a/pkgs/applications/graphics/simple-scan/default.nix b/pkgs/applications/graphics/simple-scan/default.nix
index 417d117d688..e324420b048 100644
--- a/pkgs/applications/graphics/simple-scan/default.nix
+++ b/pkgs/applications/graphics/simple-scan/default.nix
@@ -3,11 +3,11 @@
 
 stdenv.mkDerivation rec {
   name = "simple-scan-${version}";
-  version = "3.20.0";
+  version = "3.21.1";
 
   src = fetchurl {
-    sha256 = "0b5ndrjwi7yipkr9bhyifpbdil65izdm677if23yj832n2jsbxcd";
-    url = "https://launchpad.net/simple-scan/3.20/${version}/+download/${name}.tar.xz";
+    sha256 = "00w206isni8m8qd9m8x0644s1gqg11pvgnw6zav33b0bs2h2kk79";
+    url = "https://launchpad.net/simple-scan/3.21/${version}/+download/${name}.tar.xz";
   };
 
   buildInputs = [ cairo colord glib gusb gtk3 libusb1 libxml2 sane-backends