diff --git a/clientBinaries.json b/clientBinaries.json
index f0c720a5c..e26ab1890 100644
--- a/clientBinaries.json
+++ b/clientBinaries.json
@@ -2,36 +2,36 @@
 {
     "clients": {
         "Geth": {
-            "version": "1.5.9",
+            "version": "1.6.0",
             "platforms": {
                 "linux": {
                     "x64": {
                         "download": {
-                            "url": "https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-1.5.9-a07539fb.tar.gz",
+                            "url": "https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-1.6.0-facc47cb.tar.gz",
                             "type": "tar",
-                            "md5": "a0b0dda353a655a65c6d3d809ee852fd",
-                            "bin": "geth-linux-amd64-1.5.9-a07539fb/geth"
+                            "md5": "048b0618696b040f6d3ff18ee2e5763a",
+                            "bin": "geth-linux-amd64-1.6.0-facc47cb/geth"
                         },
                         "bin": "geth",
                         "commands": {
                             "sanity": {
                                 "args": ["version"],
-                                "output": [ "Geth", "1.5.9" ]
+                                "output": [ "Geth", "1.6.0" ]
                             }
                         }
                     },
                     "ia32": {
                         "download": {
-                            "url": "https://gethstore.blob.core.windows.net/builds/geth-linux-386-1.5.9-a07539fb.tar.gz",
+                            "url": "https://gethstore.blob.core.windows.net/builds/geth-linux-386-1.6.0-facc47cb.tar.gz",
                             "type": "tar",
-                            "md5": "3198330842cbfc6baa7e7b2624f8f6bd",
-                            "bin": "geth-linux-386-1.5.9-a07539fb/geth"
+                            "md5": "44215076b4d50e079878bcabeaae2117",
+                            "bin": "geth-linux-386-1.6.0-facc47cb/geth"
                         },
                         "bin": "geth",
                         "commands": {
                             "sanity": {
                                 "args": ["version"],
-                                "output": [ "Geth", "1.5.9" ]
+                                "output": [ "Geth", "1.6.0" ]
                             }
                         }
                     }
@@ -39,16 +39,16 @@
                 "mac": {
                     "x64": {
                         "download": {
-                            "url": "https://gethstore.blob.core.windows.net/builds/geth-darwin-amd64-1.5.9-a07539fb.tar.gz",
+                            "url": "https://gethstore.blob.core.windows.net/builds/geth-darwin-amd64-1.6.0-facc47cb.tar.gz",
                             "type": "tar",
-                            "md5": "6a797a930a0930ec88b810e6b2d204eb",
-                            "bin": "geth-darwin-amd64-1.5.9-a07539fb/geth"
+                            "md5": "446308f1d702bf5d30892bda43c25d23",
+                            "bin": "geth-darwin-amd64-1.6.0-facc47cb/geth"
                         },
                         "bin": "geth",
                         "commands": {
                             "sanity": {
                                 "args": ["version"],
-                                "output": [ "Geth", "1.5.9" ]
+                                "output": [ "Geth", "1.6.0" ]
                             }
                         }
                     }
@@ -56,31 +56,31 @@
                 "win": {
                     "x64": {
                         "download": {
-                            "url": "https://gethstore.blob.core.windows.net/builds/geth-windows-amd64-1.5.9-a07539fb.zip",
+                            "url": "https://gethstore.blob.core.windows.net/builds/geth-windows-amd64-1.6.0-facc47cb.zip",
                             "type": "zip",
-                            "md5": "057cdfdf4347ec9d5c0bf0b964f1b97b",
-                            "bin": "geth-windows-amd64-1.5.9-a07539fb\\geth.exe"
+                            "md5": "e4bb82c4d7078269a932cb7d46c5acb4",
+                            "bin": "geth-windows-amd64-1.6.0-facc47cb\\geth.exe"
                         },
                         "bin": "geth.exe",
                         "commands": {
                             "sanity": {
                                 "args": ["version"],
-                                "output": [ "Geth", "1.5.9" ]
+                                "output": [ "Geth", "1.6.0" ]
                             }
                         }
                     },
                     "ia32": {
                         "download": {
-                            "url": "https://gethstore.blob.core.windows.net/builds/geth-windows-386-1.5.9-a07539fb.zip",
+                            "url": "https://gethstore.blob.core.windows.net/builds/geth-windows-386-1.6.0-facc47cb.zip",
                             "type": "zip",
-                            "md5": "fa3511985215e151bafdc080e9b1fef6",
-                            "bin": "geth-windows-386-1.5.9-a07539fb\\geth.exe"
+                            "md5": "0935e22c5626c73b9f0b556b3323c71a",
+                            "bin": "geth-windows-386-1.6.0-facc47cb\\geth.exe"
                         },
                         "bin": "geth.exe",
                         "commands": {
                             "sanity": {
                                 "args": ["version"],
-                                "output": [ "Geth", "1.5.9" ]
+                                "output": [ "Geth", "1.6.0" ]
                             }
                         }
                     }
diff --git a/tests/_base.js b/tests/_base.js
index a224fce53..6eda234fa 100644
--- a/tests/_base.js
+++ b/tests/_base.js
@@ -42,8 +42,11 @@ const startGeth = function* () {
         gethPath,
         balance: 5,
         genesisBlock: {
-            difficulty: '0x1',
-            extraData: '0x1',
+            config: {
+                chainId: 33333,
+            },
+            difficulty: '0x01',
+            extraData: '0x01',
         },
         gethOptions: {
             port: 58546,
@@ -397,4 +400,3 @@ const Utils = {
     }
 
 };
-