diff --git a/pkgs/development/ocaml-modules/ssl/default.nix b/pkgs/development/ocaml-modules/ssl/default.nix
index 9a495002f1de..ad75b4a3dac0 100644
--- a/pkgs/development/ocaml-modules/ssl/default.nix
+++ b/pkgs/development/ocaml-modules/ssl/default.nix
@@ -2,7 +2,7 @@
 
 let
   ocaml_version = (builtins.parseDrvName ocaml.name).version;
-  version = "0.4.4";
+  version = "0.4.7";
 in
 
 stdenv.mkDerivation {
@@ -10,7 +10,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "mirror://debian/pool/main/o/ocaml-ssl/ocaml-ssl_${version}.orig.tar.gz";
-    sha256 = "1m45d0bd4ndxswaa1symp6c1npzjmm9pz0nf7w0q15gflqhba5ch";
+    sha256 = "0i0j89b10n3xmmawcq4qfwa42133pddw4x5nysmsnpd15srv5gp9";
   };
 
   buildInputs = [which openssl ocaml findlib];