diff --git a/pkgs/development/ocaml-modules/csv/default.nix b/pkgs/development/ocaml-modules/csv/default.nix
index 95199f16dcc..4bb8f8ace9c 100644
--- a/pkgs/development/ocaml-modules/csv/default.nix
+++ b/pkgs/development/ocaml-modules/csv/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation {
 
-  name = "ocaml-csv-1.4.2";
+  name = "ocaml-csv-1.5";
 
   src = fetchzip {
-    url = https://github.com/Chris00/ocaml-csv/releases/download/1.4.2/csv-1.4.2.tar.gz;
-    sha256 = "05s8py2qr3889c72g1q07r15pzch3j66xdphxi2sd93h5lvnpi4j";
+    url = https://github.com/Chris00/ocaml-csv/releases/download/1.5/csv-1.5.tar.gz;
+    sha256 = "1ca7jgg58j24pccs5fshis726s06fdcjshnwza5kwxpjgdbvc63g";
   };
 
   buildInputs = [ ocaml findlib ocamlbuild ];