diff --git a/pkgs/applications/science/math/primecount/default.nix b/pkgs/applications/science/math/primecount/default.nix
index 8fd2644ba110..ee6b781d7d3f 100644
--- a/pkgs/applications/science/math/primecount/default.nix
+++ b/pkgs/applications/science/math/primecount/default.nix
@@ -7,13 +7,13 @@
 
 stdenv.mkDerivation rec {
   pname = "primecount";
-  version = "7.6";
+  version = "7.7";
 
   src = fetchFromGitHub {
     owner = "kimwalisch";
     repo = "primecount";
     rev = "v${version}";
-    hash = "sha256-x9sXLuHd3nfVM6sL/5yAzIoTVkf1LIUnbhx2WlD/OS8=";
+    hash = "sha256-6Q9DPnlGKb31QYEGpm78ISfbj90MeLD0/2k2fDZm7cM=";
   };
 
   nativeBuildInputs = [