diff --git a/pkgs/development/ocaml-modules/mopsa/default.nix b/pkgs/development/ocaml-modules/mopsa/default.nix
index 8f084ef9618d..456a7e85a663 100644
--- a/pkgs/development/ocaml-modules/mopsa/default.nix
+++ b/pkgs/development/ocaml-modules/mopsa/default.nix
@@ -11,6 +11,7 @@
   ocaml,
   menhir,
   apron,
+  arg-complete,
   camlidl,
   yojson,
   zarith,
@@ -18,15 +19,15 @@
 
 buildDunePackage rec {
   pname = "mopsa";
-  version = "1.0";
+  version = "1.1";
 
-  minimalOCamlVersion = "4.12";
+  minimalOCamlVersion = "4.13";
 
   src = fetchFromGitLab {
     owner = "mopsa";
     repo = "mopsa-analyzer";
-    rev = "v${version}";
-    hash = "sha256-nGnWwV7g3SYgShbXGUMooyOdFwXFrQHnQvlc8x9TAS4=";
+    tag = "v${version}";
+    hash = "sha256-lO5dtGAl1dq8oJco/hPXrAbN05rKc62Zrci/8CLrQ0c=";
   };
 
   nativeBuildInputs = [
@@ -36,6 +37,7 @@ buildDunePackage rec {
   ];
 
   buildInputs = [
+    arg-complete
     camlidl
     flint
     libclang