diff --git a/packages/core/package.json b/packages/core/package.json
index 4ab573ea..9a1a4e79 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -41,7 +41,7 @@
     "chai-as-promised": "7.1.1",
     "del-cli": "2.0.0",
     "mocha": "6.2.0",
-    "mockttp": "0.15.1",
+    "mockttp": "0.16.1",
     "sinon": "7.4.1",
     "source-map-support": "0.5.13",
     "ts-node": "8.3.0",
diff --git a/packages/sync/package.json b/packages/sync/package.json
index b0344ff1..c9722130 100644
--- a/packages/sync/package.json
+++ b/packages/sync/package.json
@@ -61,7 +61,8 @@
     "apollo-upload-client": "11.0.0",
     "debug": "4.1.1",
     "idb-localstorage": "0.2.0",
-    "offix-client": "0.8.1",
+    "offix-cache": "0.8.2",
+    "offix-offline": "0.8.2",
     "subscriptions-transport-ws": "0.9.16"
   },
   "peerDependencies": {