diff --git a/pkgs/development/compilers/chicken/default.nix b/pkgs/development/compilers/chicken/default.nix
index 7effd72be4c7..1a4e33775017 100644
--- a/pkgs/development/compilers/chicken/default.nix
+++ b/pkgs/development/compilers/chicken/default.nix
@@ -1,17 +1,7 @@
-{ stdenv, fetchurl, devSnapshot ? false }:
+{ stdenv, fetchurl }:
 
 let
-  stableVersion = "4.8.0.6";
-  devVersion = "4.9.0rc1";
-  version = if devSnapshot then devVersion else stableVersion;
-  srcRelease = fetchurl {
-    url = "http://code.call-cc.org/releases/4.8.0/chicken-${stableVersion}.tar.gz";
-    sha256 = "0an6l09y9pa6r4crkn33w6l4j6nwhvk6fibx2ajv6h0pfl2jqkd5";
-  };
-  srcDev = fetchurl {
-    url = "http://code.call-cc.org/dev-snapshots/2014/04/17/chicken-${devVersion}.tar.gz";
-    sha256 = "168f5ib02hh6cnilsrfg103ijhlg4j0z0fgs7i55kzd4aggy1w42";
-  };
+  version = "4.9.0";
   platform = with stdenv;
     if isDarwin then "macosx"
     else if isCygwin then "cygwin"
@@ -22,9 +12,10 @@ in
 stdenv.mkDerivation {
   name = "chicken-${version}";
 
-  src = if devSnapshot
-    then srcDev
-    else srcRelease;
+  src = fetchurl {
+    url = "http://code.call-cc.org/releases/4.9.0/chicken-${version}.tar.gz";
+    sha256 = "08jaavr3lhs0z2q9k7b7w8l3fsxpms58zxg8nyk8674p54cbwaig";
+  };
 
   buildFlags = "PLATFORM=${platform} PREFIX=$(out) VARDIR=$(out)/var/lib";
   installFlags = "PLATFORM=${platform} PREFIX=$(out) VARDIR=$(out)/var/lib";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d25e33bd81fc..3ea34f3dec14 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2498,10 +2498,6 @@ let
 
   chicken = callPackage ../development/compilers/chicken { };
 
-  chicken-dev = chicken.override {
-    devSnapshot = true;
-  };
-
   ccl = builderDefsPackage ../development/compilers/ccl {};
 
   clang = wrapClang llvmPackages.clang;