diff --git a/pkgs/development/ocaml-modules/repr/default.nix b/pkgs/development/ocaml-modules/repr/default.nix
index 47c19154689e..d3d23a5d9fc6 100644
--- a/pkgs/development/ocaml-modules/repr/default.nix
+++ b/pkgs/development/ocaml-modules/repr/default.nix
@@ -2,18 +2,16 @@
 
 buildDunePackage rec {
   pname = "repr";
-  version = "0.6.0";
+  version = "0.7.0";
 
   src = fetchFromGitHub {
     owner = "mirage";
     repo = "repr";
     rev = version;
-    hash = "sha256-jF8KmaG07CT26O/1ANc6s1yHFJqhXDtd0jgTA04tIgw=";
+    hash = "sha256-SM55m5NIaQ2UKAtznNFSt3LN4QA7As0DyTxVeQjOTjI=";
   };
 
   minimalOCamlVersion = "4.08";
-  duneVersion = "3";
-  strictDeps = true;
 
   propagatedBuildInputs = [
     base64
diff --git a/pkgs/development/ocaml-modules/repr/ppx.nix b/pkgs/development/ocaml-modules/repr/ppx.nix
index b1091114ce27..cd3bf78eadda 100644
--- a/pkgs/development/ocaml-modules/repr/ppx.nix
+++ b/pkgs/development/ocaml-modules/repr/ppx.nix
@@ -3,8 +3,7 @@
 buildDunePackage {
   pname = "ppx_repr";
 
-  inherit (repr) src version strictDeps;
-  duneVersion = "3";
+  inherit (repr) src version;
 
   propagatedBuildInputs = [
     ppx_deriving
@@ -12,7 +11,7 @@ buildDunePackage {
     repr
   ];
 
-  doCheck = false; # tests fail with ppxlib >= 0.23.0
+  doCheck = true;
   checkInputs = [
     alcotest
     hex