diff --git a/pkgs/tools/security/ibm-sw-tpm2/default.nix b/pkgs/tools/security/ibm-sw-tpm2/default.nix
index 5e1d460a4634..d6e8a521a2fa 100644
--- a/pkgs/tools/security/ibm-sw-tpm2/default.nix
+++ b/pkgs/tools/security/ibm-sw-tpm2/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "ibm-sw-tpm2";
-  version = "1563";
+  version = "1628";
 
   src = fetchurl {
     url = "mirror://sourceforge/ibmswtpm2/ibmtpm${version}.tar.gz";
-    sha256 = "1sfi7drmbm08rgd2414s3sxd7h5g8d4kiwk40xklf7sw67w1ffpw";
+    sha256 = "18wywbsdp5sjrapznk2ydbmx0whz513dhybn1lls24xfl7kp9s58";
   };
 
   buildInputs = [ openssl ];