diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 6478bd9556f..afc361070b3 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6506,11 +6506,11 @@ let
 
   rainbowstream = buildPythonPackage rec {
     name = "rainbowstream-${version}";
-    version = "1.1.6";
+    version = "1.2.5";
 
     src = pkgs.fetchurl {
       url    = "https://pypi.python.org/packages/source/r/rainbowstream/${name}.tar.gz";
-      sha256 = "04i2a8a5k6n6lgfpa9bzzbkhvywgd4bn3qlspl97pn8ply9kgszm";
+      sha256 = "1fch1vckzf4nmq67fk2jgfxpvyygviavx8di4xhjq2mib9nfc3mr";
     };
 
     doCheck = false;