diff --git a/pkgs/development/tools/analysis/flow/default.nix b/pkgs/development/tools/analysis/flow/default.nix
index 71ffb35a9f0f..d356caad1f64 100644
--- a/pkgs/development/tools/analysis/flow/default.nix
+++ b/pkgs/development/tools/analysis/flow/default.nix
@@ -1,16 +1,16 @@
-{ stdenv, fetchFromGitHub, lib, ocaml, libelf, cf-private, CoreServices }:
+{ stdenv, fetchFromGitHub, lib, ocaml, libelf, cf-private, CoreServices, findlib, camlp4, sedlex, ocamlbuild }:
 
 with lib;
 
 stdenv.mkDerivation rec {
-  version = "0.42.0";
+  version = "0.46.0";
   name = "flow-${version}";
 
   src = fetchFromGitHub {
     owner = "facebook";
     repo = "flow";
     rev = "v${version}";
-    sha256 = "1mzl13z3c512b3jrrkzm5wmd9wjpnr173pan0vvpgf23333yvigq";
+    sha256 = "05rnlckwiynkh0300f27xhrn53pf0hxlkb0iz3nlb81xmsk005a4";
   };
 
   installPhase = ''
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
     cp bin/flow $out/bin/
   '';
 
-  buildInputs = [ ocaml libelf ]
+  buildInputs = [ ocaml libelf findlib camlp4 sedlex ocamlbuild ]
     ++ optionals stdenv.isDarwin [ cf-private CoreServices ];
 
   meta = with stdenv.lib; {
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index cc71f918d541..1f033de3b8f6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6718,7 +6718,7 @@ with pkgs;
   flow = callPackage ../development/tools/analysis/flow {
     inherit (darwin.apple_sdk.frameworks) CoreServices;
     inherit (darwin) cf-private;
-    ocaml = ocaml_4_02;
+    inherit (ocamlPackages_4_03) ocaml findlib camlp4 sedlex ocamlbuild;
   };
 
   framac = callPackage ../development/tools/analysis/frama-c { };