diff --git a/pkgs/development/libraries/eccodes/default.nix b/pkgs/development/libraries/eccodes/default.nix
index 6ca3c51412c8..ac1da8d37440 100644
--- a/pkgs/development/libraries/eccodes/default.nix
+++ b/pkgs/development/libraries/eccodes/default.nix
@@ -18,11 +18,11 @@
 
 stdenv.mkDerivation rec {
   pname = "eccodes";
-  version = "2.41.0";
+  version = "2.42.0";
 
   src = fetchurl {
     url = "https://confluence.ecmwf.int/download/attachments/45757960/eccodes-${version}-Source.tar.gz";
-    hash = "sha256-oUZ4QuEe1/YqL1zBmC4E7sYjmPSWLmugOs52RvMs8nA=";
+    hash = "sha256-YDcbNXywEd7lRtsuq6zlt+J/D4fT6kpa3eeJE3GzwSg=";
   };
 
   postPatch = ''