diff --git a/pkgs/tools/security/cb0cat/default.nix b/pkgs/tools/security/cb0cat/default.nix
deleted file mode 100644
index 0f84cfa6ebc7..000000000000
--- a/pkgs/tools/security/cb0cat/default.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-{ stdenv, fetchurl }:
-
-stdenv.mkDerivation rec {
-  name    = "cb0cat-${version}";
-  version = "20131216153906";
-
-  src = fetchurl {
-    url    = "https://www.cblnk.com/cb0cat/dist/${name}.tgz";
-    sha256 = "182767nxfyiis7ac8bn5v8rxb9vlly8n5w42pz1dd0751xwdlp82";
-  };
-
-  installPhase = ''
-    mkdir -p $out/bin
-    mv cb0cat $out/bin
-  '';
-
-  meta = {
-    description = "cryptographic tool based on the CBEAMr0 sponge function";
-    homepage    = "https://www.cblnk.com";
-    license     = stdenv.lib.licenses.bsd3;
-    platforms   = stdenv.lib.platforms.unix;
-    maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
-  };
-}
diff --git a/pkgs/tools/security/cb1cat/default.nix b/pkgs/tools/security/cb1cat/default.nix
new file mode 100644
index 000000000000..7c3d9a1661e2
--- /dev/null
+++ b/pkgs/tools/security/cb1cat/default.nix
@@ -0,0 +1,24 @@
+{ stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  name    = "cb1cat-${version}";
+  version = "20140328100000";
+
+  src = fetchurl {
+    url    = "https://www.cblnk.com/cb1cat/dist/${name}.tgz";
+    sha256 = "0fbly4fg2qsb4kx9wgv357bsa3mmmy8xmy0yszw80k50ixphjswv";
+  };
+
+  installPhase = ''
+    mkdir -p $out/bin
+    mv cb1cat $out/bin
+  '';
+
+  meta = {
+    description = "cryptographic tool based on the CBEAMr1 sponge function";
+    homepage    = "https://www.cblnk.com/cb1cat/";
+    license     = stdenv.lib.licenses.bsd3;
+    platforms   = stdenv.lib.platforms.unix;
+    maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fbc96e29d82b..af3f231b5763 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -426,7 +426,7 @@ let
 
   aescrypt = callPackage ../tools/misc/aescrypt { };
 
-  cb0cat = callPackage ../tools/security/cb0cat { };
+  cb1cat = callPackage ../tools/security/cb1cat { };
 
   ahcpd = callPackage ../tools/networking/ahcpd { };