diff --git a/pkgs/development/ocaml-modules/mirage-block-ramdisk/default.nix b/pkgs/development/ocaml-modules/mirage-block-ramdisk/default.nix
index 78f3e48c5bd4..a6978d3d5811 100644
--- a/pkgs/development/ocaml-modules/mirage-block-ramdisk/default.nix
+++ b/pkgs/development/ocaml-modules/mirage-block-ramdisk/default.nix
@@ -16,6 +16,7 @@ buildDunePackage rec {
   '';
 
   minimalOCamlVersion = "4.06";
+  duneVersion = "3";
 
   propagatedBuildInputs = [ io-page mirage-block ];
 
diff --git a/pkgs/development/ocaml-modules/mirage-block-unix/default.nix b/pkgs/development/ocaml-modules/mirage-block-unix/default.nix
index 0d0851536b38..e32523c85eb6 100644
--- a/pkgs/development/ocaml-modules/mirage-block-unix/default.nix
+++ b/pkgs/development/ocaml-modules/mirage-block-unix/default.nix
@@ -13,6 +13,7 @@ buildDunePackage rec {
   };
 
   minimalOCamlVersion = "4.08";
+  duneVersion = "3";
 
   propagatedBuildInputs = [ cstruct-lwt logs mirage-block rresult uri ];
 
diff --git a/pkgs/development/ocaml-modules/mirage-block/combinators.nix b/pkgs/development/ocaml-modules/mirage-block/combinators.nix
index 7dee169afd5b..fc50002da1e6 100644
--- a/pkgs/development/ocaml-modules/mirage-block/combinators.nix
+++ b/pkgs/development/ocaml-modules/mirage-block/combinators.nix
@@ -1,10 +1,12 @@
-{ buildDunePackage, mirage-block, io-page, logs }:
+{ buildDunePackage, mirage-block, logs }:
 
 buildDunePackage rec {
   pname = "mirage-block-combinators";
   inherit (mirage-block) version src;
 
-  propagatedBuildInputs = [ mirage-block io-page logs ];
+  duneVersion = "3";
+
+  propagatedBuildInputs = [ mirage-block logs ];
 
   meta = mirage-block.meta // {
     description = "Block signatures and implementations for MirageOS using Lwt";
diff --git a/pkgs/development/ocaml-modules/mirage-block/default.nix b/pkgs/development/ocaml-modules/mirage-block/default.nix
index 161fd4a66ead..0cd1f1717ea6 100644
--- a/pkgs/development/ocaml-modules/mirage-block/default.nix
+++ b/pkgs/development/ocaml-modules/mirage-block/default.nix
@@ -4,11 +4,13 @@
 
 buildDunePackage rec {
   pname = "mirage-block";
-  version = "3.0.0";
+  version = "3.0.2";
+
+  duneVersion = "3";
 
   src = fetchurl {
-    url = "https://github.com/mirage/mirage-block/releases/download/v${version}/mirage-block-v${version}.tbz";
-    sha256 = "sha256-NB5nJpppMtdi0HDjKcCAqRjO4vIbAMfnP934P+SnzmU=";
+    url = "https://github.com/mirage/mirage-block/releases/download/v${version}/mirage-block-${version}.tbz";
+    hash = "sha256-UALUfeL0G1mfSsLgAb/HpQ6OV12YtY+GUOYG6yhUwAI=";
   };
 
   propagatedBuildInputs = [ cstruct lwt fmt ];