diff --git a/pkgs/applications/science/logic/iprover/default.nix b/pkgs/applications/science/logic/iprover/default.nix
index 6485681e3313..77e5919c0eee 100644
--- a/pkgs/applications/science/logic/iprover/default.nix
+++ b/pkgs/applications/science/logic/iprover/default.nix
@@ -1,29 +1,39 @@
-{ lib, stdenv, fetchurl, ocaml, eprover, zlib }:
+{ lib, stdenv, fetchFromGitLab, ocamlPackages, eprover, z3, zlib }:
 
 stdenv.mkDerivation rec {
   pname = "iprover";
-  version = "3.1";
+  version = "3.8.1";
 
-  src = fetchurl {
-    url = "http://www.cs.man.ac.uk/~korovink/iprover/iprover-v${version}.tar.gz";
-    sha256 = "0lik8p7ayhjwpkln1iwf0ri84ramhch74j5nj6z7ph6wfi92pgg8";
+  src = fetchFromGitLab {
+    owner = "korovin";
+    repo = pname;
+    rev = "f61edb113b705606c7314dc4dce0687832c3169f";
+    hash = "sha256-XXqbEoYKjoktE3ZBEIEFjLhA1B75zhnfPszhe8SvbI8=";
   };
 
+  postPatch = ''
+    substituteInPlace configure --replace Linux Debian
+  '';
+
   strictDeps = true;
 
-  nativeBuildInputs = [ ocaml eprover ];
-  buildInputs = [ zlib ];
+  nativeBuildInputs = [ eprover ] ++ (with ocamlPackages; [
+    ocaml findlib
+  ]);
+  buildInputs = [ zlib ocamlPackages.z3 z3 ] ++ (with ocamlPackages; [
+    ocamlgraph yojson zarith
+  ]);
 
   preConfigure = "patchShebangs .";
 
   installPhase = ''
+    runHook preInstall
     mkdir -p "$out/bin"
     cp iproveropt "$out/bin"
 
-    mkdir -p "$out/share/${pname}-${version}"
-    cp *.p "$out/share/${pname}-${version}"
     echo -e "#! ${stdenv.shell}\\n$out/bin/iproveropt --clausifier \"${eprover}/bin/eprover\" --clausifier_options \" --tstp-format --silent --cnf \" \"\$@\"" > "$out"/bin/iprover
     chmod a+x  "$out"/bin/iprover
+    runHook postInstall
   '';
 
   meta = with lib; {