diff --git a/pkgs/applications/science/math/polymake/default.nix b/pkgs/applications/science/math/polymake/default.nix
index 9566801479a3..f4f6366465b8 100644
--- a/pkgs/applications/science/math/polymake/default.nix
+++ b/pkgs/applications/science/math/polymake/default.nix
@@ -12,13 +12,13 @@
 
 stdenv.mkDerivation rec {
   pname = "polymake";
-  version = "4.4";
+  version = "4.5";
 
   src = fetchurl {
     # "The minimal version is a packager friendly version which omits
     # the bundled sources of cdd, lrs, libnormaliz, nauty and jReality."
     url = "https://polymake.org/lib/exe/fetch.php/download/polymake-${version}-minimal.tar.bz2";
-    sha256 = "sha256-2nF5F2xznI77pl2TslrxA8HLpw4fmzVnPOM8N3kOwJE=";
+    sha256 = "sha256-6UPUuzHBEvrYUjQONZW8WRwgcGkqFtUBg6OxBFZteZY=";
   };
 
   buildInputs = [