diff --git a/pkgs/development/ocaml-modules/iri/default.nix b/pkgs/development/ocaml-modules/iri/default.nix
index 49dfc5d5b2b5..74c2481ddf8f 100644
--- a/pkgs/development/ocaml-modules/iri/default.nix
+++ b/pkgs/development/ocaml-modules/iri/default.nix
@@ -9,7 +9,7 @@
 
 buildDunePackage (finalAttrs: {
   pname = "iri";
-  version = "1.1.0";
+  version = "1.2.0";
 
   minimalOCamlVersion = "4.12";
 
@@ -18,7 +18,7 @@ buildDunePackage (finalAttrs: {
     owner = "zoggy";
     repo = "ocaml-iri";
     rev = finalAttrs.version;
-    hash = "sha256-fh5+0CWplDdGXCotZL2UzjOGil2LR4NppttaquO/ndE=";
+    hash = "sha256-+wBQBzRkN36T3zAQWmqq/VdhgLrCnbvOouEmVg37s/w=";
   };
 
   propagatedBuildInputs = [