diff --git a/lib/deps.json b/lib/deps.json
index efb7ffd..a1bb91b 100644
--- a/lib/deps.json
+++ b/lib/deps.json
@@ -71,17 +71,16 @@
       "netty-common"
     ],
     "GRPC_1.3": [
-//      "grpc-core-1.3.0",
-      "grpc-protobuf-1.3.0",
-      "grpc-stub-1.3.0",
-      "grpc-netty-1.3.0",
-      "grpc-auth-1.3.0",
-      "grpc-context-1.3.0",
+      "grpc-protobuf-1.3.1",
+      "grpc-stub-1.3.1",
+      "grpc-netty-1.3.1",
+      "grpc-auth-1.3.1",
+      "grpc-context-1.3.1",
       "google-truth-0.28"
     ],
     "GRPC_TEST_1.3": [
-      "grpc-testing-1.3.0",
-      "grpc-testing-proto-1.3.0",
+      "grpc-testing-1.3.1",
+      "grpc-testing-proto-1.3.1",
       "google-code-findbugs-3.0.0",
       "google-errorprone-2.0.19",
       "google-instrumentation-0.3.0",
@@ -248,17 +247,17 @@
     "org.apache.servicemix.bundles.dom4j":"mvn:org.apache.servicemix.bundles:org.apache.servicemix.bundles.dom4j:1.6.1_5",
     "plexus-utils": "mvn:org.codehaus.plexus:plexus-utils:3.0.24",
     "sshd-core": "mvn:org.apache.sshd:sshd-core:1.4.0",
-    "grpc-core-1.3.0": "mvn:io.grpc:grpc-core:1.3.0",
-    "grpc-protobuf-1.3.0": "mvn:io.grpc:grpc-protobuf:1.3.0",
-    "grpc-protobuf-lite-1.3.0": "mvn:io.grpc:grpc-protobuf-lite:1.3.0",
-    "grpc-stub-1.3.0": "mvn:io.grpc:grpc-stub:1.3.0",
-    "grpc-netty-1.3.0": "mvn:io.grpc:grpc-netty:1.3.0",
-    "grpc-auth-1.3.0": "mvn:io.grpc:grpc-auth:1.3.0",
+    "grpc-core-1.3.1": "mvn:io.grpc:grpc-core:1.3.1",
+    "grpc-protobuf-1.3.1": "mvn:io.grpc:grpc-protobuf:1.3.1",
+    "grpc-protobuf-lite-1.3.1": "mvn:io.grpc:grpc-protobuf-lite:1.3.1",
+    "grpc-stub-1.3.1": "mvn:io.grpc:grpc-stub:1.3.1",
+    "grpc-netty-1.3.1": "mvn:io.grpc:grpc-netty:1.3.1",
+    "grpc-auth-1.3.1": "mvn:io.grpc:grpc-auth:1.3.1",
     "protobuf-java-3.3.0": "mvn:com.google.protobuf:protobuf-java:3.3.0",
     "protobuf-java-3.2.0": "mvn:com.google.protobuf:protobuf-java:3.2.0",
-    "grpc-testing-1.3.0": "mvn:io.grpc:grpc-testing:1.3.0",
-    "grpc-testing-proto-1.3.0": "mvn:io.grpc:grpc-testing-proto:1.3.0",
-    "grpc-context-1.3.0": "mvn:io.grpc:grpc-context:1.3.0",
+    "grpc-testing-1.3.1": "mvn:io.grpc:grpc-testing:1.3.1",
+    "grpc-testing-proto-1.3.1": "mvn:io.grpc:grpc-testing-proto:1.3.1",
+    "grpc-context-1.3.1": "mvn:io.grpc:grpc-context:1.3.1",
     "google-truth-0.28": "mvn:com.google.truth:truth:0.28",
     "google-code-findbugs-3.0.0": "mvn:com.google.code.findbugs:jsr305:3.0.0",
     "google-errorprone-2.0.19": "mvn:com.google.errorprone:error_prone_annotations:2.0.19",