diff --git a/pkgs/applications/editors/emacs/elisp-packages/fetchelpa.nix b/pkgs/applications/editors/emacs/elisp-packages/fetchelpa.nix
new file mode 100644
index 00000000000..f4524f3b7a9
--- /dev/null
+++ b/pkgs/applications/editors/emacs/elisp-packages/fetchelpa.nix
@@ -0,0 +1,21 @@
+# Elpa only serves the latest version of a given package uncompressed.
+# Once that release is no longer the latest & greatest it gets archived and compressed
+# meaning that both the URL and the hash changes.
+#
+# To work around this issue we fall back to the URL with the .lz suffix and if that's the
+# one we downloaded we uncompress the file to ensure the hash matches regardless of compression.
+
+{ fetchurl, lzip }:
+
+{ url, ... }@args: fetchurl ((removeAttrs args [ "url" ]) // {
+  urls = [
+    url
+    (url + ".lz")
+  ];
+  postFetch = ''
+    if [[ $url == *.lz ]]; then
+      ${lzip}/bin/lzip -c -d $out > uncompressed
+      mv uncompressed $out
+    fi
+  '';
+})