diff --git a/pkgs/development/libraries/eccodes/default.nix b/pkgs/development/libraries/eccodes/default.nix
index 172f15b7ad48..e8b58762f920 100644
--- a/pkgs/development/libraries/eccodes/default.nix
+++ b/pkgs/development/libraries/eccodes/default.nix
@@ -16,11 +16,11 @@
 
 stdenv.mkDerivation rec {
   pname = "eccodes";
-  version = "2.34.0";
+  version = "2.34.1";
 
   src = fetchurl {
     url = "https://confluence.ecmwf.int/download/attachments/45757960/eccodes-${version}-Source.tar.gz";
-    sha256 = "sha256-PNIIyN2tEyeJZiz49nqUBVFL/vysrEA8DYyEUH8wOro=";
+    hash = "sha256-+bhoASLjzOwm5u0kqB8bxQ7Z8iMrQx4F5XNniqxNlzQ=";
   };
 
   postPatch = ''