diff --git a/pkgs/geographiclib/default.nix b/pkgs/geographiclib/default.nix
index 02db042019..d8c1a4946b 100644
--- a/pkgs/geographiclib/default.nix
+++ b/pkgs/geographiclib/default.nix
@@ -7,11 +7,11 @@ let
   };
 in stdenv.mkDerivation rec {
   pname = "geographiclib";
-  version = "1.50.1";
+  version = "1.51";
 
   src = fetchurl {
     url = "mirror://sourceforge/${pname}/GeographicLib-${version}.tar.gz";
-    sha256 = "1wc58csjhjp8jmcqxbaaikqczrjwwimmszlmfrgcrf38w04m0xni";
+    sha256 = "046k49h52n2qxclqdzjmqj6pbvqsb28hn7lnsrdi1xbxc54hjdrl";
   };
 
   nativeBuildInputs = [ cmake ];