diff --git a/pkgs/development/ocaml-modules/ppx_import/default.nix b/pkgs/development/ocaml-modules/ppx_import/default.nix
index 8330aead80ea..23454e2dadcc 100644
--- a/pkgs/development/ocaml-modules/ppx_import/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_import/default.nix
@@ -6,18 +6,9 @@
 , ppx_deriving
 , ppx_sexp_conv
 , ppxlib
-, version ? if lib.versionAtLeast ocaml.version "4.11" then "1.10.0" else "1.9.1"
+, version ? if lib.versionAtLeast ocaml.version "4.11" then "1.11.0" else "1.9.1"
 }:
 
-let param = {
-  "1.9.1" = {
-    sha256 = "sha256-0bSY4u44Ds84XPIbcT5Vt4AG/4PkzFKMl9CDGFZyIdI=";
-  };
-  "1.10.0" = {
-    sha256 = "sha256-MA8sf0F7Ch1wJDL8E8470ukKx7KieWyjWJnJQsqBVW8=";
-  };
-}."${version}"; in
-
 lib.throwIfNot (lib.versionAtLeast ppxlib.version "0.24.0")
   "ppx_import is not available with ppxlib-${ppxlib.version}"
 
@@ -26,11 +17,15 @@ buildDunePackage rec {
   inherit version;
 
   minimalOCamlVersion = "4.05";
-  duneVersion = "3";
 
   src = fetchurl {
-    url = "https://github.com/ocaml-ppx/ppx_import/releases/download/${version}/ppx_import-${version}.tbz";
-    inherit (param) sha256;
+    url = let dir = if lib.versionAtLeast version "1.11" then "v${version}" else "${version}"; in
+      "https://github.com/ocaml-ppx/ppx_import/releases/download/${dir}/ppx_import-${version}.tbz";
+
+    hash = {
+      "1.9.1" = "sha256-0bSY4u44Ds84XPIbcT5Vt4AG/4PkzFKMl9CDGFZyIdI=";
+      "1.11.0" = "sha256-Jmfv1IkQoaTkyxoxp9FI0ChNESqCaoDsA7D4ZUbOrBo=";
+    }."${version}";
   };
 
   propagatedBuildInputs = [