diff --git a/pkgs/development/tools/ocaml/findlib/default.nix b/pkgs/development/tools/ocaml/findlib/default.nix
index e7abf32eae5f..44d9782f3ce5 100644
--- a/pkgs/development/tools/ocaml/findlib/default.nix
+++ b/pkgs/development/tools/ocaml/findlib/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "ocaml-findlib";
-  version = "1.9.1";
+  version = "1.9.3";
 
   src = fetchurl {
     url = "http://download.camlcity.org/download/findlib-${version}.tar.gz";
-    sha256 = "sha256-K0K4vVRIjWTEvzy3BUtLN70wwdwSvUMeoeTXrYqYD+I=";
+    sha256 = "sha256:0hfcwamcvinmww59b5i4yxbf0kxyzkp5qv3d1c7ybn9q52vgq463";
   };
 
   nativeBuildInputs = [m4 ocaml];
diff --git a/pkgs/development/tools/ocaml/findlib/install_topfind.patch b/pkgs/development/tools/ocaml/findlib/install_topfind.patch
index dbdb0edd6cb1..e961b3059065 100644
--- a/pkgs/development/tools/ocaml/findlib/install_topfind.patch
+++ b/pkgs/development/tools/ocaml/findlib/install_topfind.patch
@@ -6,7 +6,7 @@
  	mkdir -p "$(prefix)$(OCAMLFIND_BIN)"
 -	test $(INSTALL_TOPFIND) -eq 0 || cp topfind "$(prefix)$(OCAML_CORE_STDLIB)"
 +	test $(INSTALL_TOPFIND) -eq 0 || cp topfind "$(prefix)$(OCAML_SITELIB)"
-	files=`$(SH) $(TOP)/tools/collect_files $(TOP)/Makefile.config findlib.cmi findlib.mli findlib.cma findlib.cmxa findlib$(LIB_SUFFIX) findlib.cmxs topfind.cmi topfind.mli fl_package_base.mli fl_package_base.cmi fl_metascanner.mli fl_metascanner.cmi fl_metatoken.cmi findlib_top.cma findlib_top.cmxa findlib_top$(LIB_SUFFIX) findlib_top.cmxs findlib_dynload.cma findlib_dynload.cmxa findlib_dynload$(LIB_SUFFIX) findlib_dynload.cmxs fl_dynload.mli fl_dynload.cmi META` && \
-	cp $$files "$(prefix)$(OCAML_SITELIB)/$(NAME)"
-	f="ocamlfind$(EXEC_SUFFIX)"; { test -f ocamlfind_opt$(EXEC_SUFFIX) && f="ocamlfind_opt$(EXEC_SUFFIX)"; }; \
+ 	files=`$(SH) $(TOP)/tools/collect_files $(TOP)/Makefile.config \
+ 	findlib.cmi findlib.mli findlib.cma findlib.cmxa findlib$(LIB_SUFFIX) findlib.cmxs \
+ 	findlib_config.cmi findlib_config.ml topfind.cmi topfind.mli \