diff --git a/pkgs/development/ocaml-modules/magic-mime/default.nix b/pkgs/development/ocaml-modules/magic-mime/default.nix
index 15628bcf26c..a48260ed38d 100644
--- a/pkgs/development/ocaml-modules/magic-mime/default.nix
+++ b/pkgs/development/ocaml-modules/magic-mime/default.nix
@@ -2,11 +2,11 @@
 
 buildDunePackage rec {
   pname = "magic-mime";
-  version = "1.1.3";
+  version = "1.2.0";
 
   src = fetchurl {
     url = "https://github.com/mirage/ocaml-magic-mime/releases/download/v${version}/magic-mime-v${version}.tbz";
-    sha256 = "1xqjs8bba567yzrzgnr88j5ck97d36zw68zr9v29liya37k6rcvz";
+    sha256 = "sha256-8SG2dQD43Zfi/J/V0BxzJeTIS8XAI3RCd5+9b6IGlPU=";
   };
 
   minimalOCamlVersion = "4.03";