diff --git a/pkgs/tools/misc/pspg/default.nix b/pkgs/tools/misc/pspg/default.nix
index fe506a31c0e..abba7ca91ac 100644
--- a/pkgs/tools/misc/pspg/default.nix
+++ b/pkgs/tools/misc/pspg/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "pspg";
-  version = "5.5.4";
+  version = "5.5.6";
 
   src = fetchFromGitHub {
     owner = "okbob";
     repo = pname;
     rev = version;
-    sha256 = "sha256-2j1K9enoPBPLL+0oOhzcYVxfsjb8BzsfeHNi9TJOnmc=";
+    sha256 = "sha256-99EuWSNW9e5/GyiR3JwDNFTAOJpaGCJKmxt340bjPrA=";
   };
 
   nativeBuildInputs = [ pkg-config installShellFiles ];