diff --git a/pkgs/development/tools/ocaml/ocp-index/default.nix b/pkgs/development/tools/ocaml/ocp-index/default.nix
index d1f7ec0f097c..1fa391f607f8 100644
--- a/pkgs/development/tools/ocaml/ocp-index/default.nix
+++ b/pkgs/development/tools/ocaml/ocp-index/default.nix
@@ -10,7 +10,7 @@
 
 buildDunePackage rec {
   pname = "ocp-index";
-  version = "1.3.6";
+  version = "1.3.7";
 
   minimalOCamlVersion = "4.08";
 
@@ -18,7 +18,7 @@ buildDunePackage rec {
     owner = "OCamlPro";
     repo = "ocp-index";
     rev = version;
-    hash = "sha256-EgRpC58NBVFO1w0xx11CnonatU2H7bECsEk6Y4c/odY=";
+    hash = "sha256-FbkVJRbFNSho/E59QMUoGK+TrdnnacmykJWWG2JVDVA=";
   };
 
   nativeBuildInputs = [ cppo ];