diff --git a/pkgs/data/fonts/ibm-plex/default.nix b/pkgs/data/fonts/ibm-plex/default.nix
index ba214dd35fd..e5a281eebf6 100644
--- a/pkgs/data/fonts/ibm-plex/default.nix
+++ b/pkgs/data/fonts/ibm-plex/default.nix
@@ -1,7 +1,7 @@
 { lib, fetchzip }:
 
 let
-  version = "1.1.6";
+  version = "1.2.1";
 in fetchzip rec {
   name = "ibm-plex-${version}";
   url = "https://github.com/IBM/plex/releases/download/v${version}/OpenType.zip";
@@ -9,7 +9,7 @@ in fetchzip rec {
     mkdir -p $out/share/fonts
     unzip -j $downloadedFile \*.otf -d $out/share/fonts/opentype
   '';
-  sha256 = "0n9qmh6v7gvrl1mfb0knygxlbkb78hvkdrppssx64m3pk4pxw85a";
+  sha256 = "1mwlw39nbqrk08crvgm77l98yyyabwhcgsng89c9s67gq4mlxmxa";
 
   meta = with lib; {
     description = "IBM Plex Typeface";