diff --git a/backend/package.json b/backend/package.json
index 4313a940c..aa23ada86 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -44,7 +44,7 @@
   "dependencies": {
     "@hapi/joi": "^15.1.0",
     "activitystrea.ms": "~2.1.3",
-    "apollo-cache-inmemory": "~1.6.2",
+    "apollo-cache-inmemory": "~1.6.3",
     "apollo-client": "~2.6.4",
     "apollo-link-context": "~1.0.18",
     "apollo-link-http": "~1.5.15",
diff --git a/backend/yarn.lock b/backend/yarn.lock
index 4e1836ed6..263239145 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -1493,14 +1493,14 @@ apollo-cache-control@0.8.1:
     apollo-server-env "2.4.1"
     graphql-extensions "0.8.1"
 
-apollo-cache-inmemory@~1.6.2:
-  version "1.6.2"
-  resolved "https://registry.yarnpkg.com/apollo-cache-inmemory/-/apollo-cache-inmemory-1.6.2.tgz#bbf2e4e1eacdf82b2d526f5c2f3b37e5acee3c5e"
-  integrity sha512-AyCl3PGFv5Qv1w4N9vlg63GBPHXgMCekZy5mhlS042ji0GW84uTySX+r3F61ZX3+KM1vA4m9hQyctrEGiv5XjQ==
+apollo-cache-inmemory@~1.6.3:
+  version "1.6.3"
+  resolved "https://registry.yarnpkg.com/apollo-cache-inmemory/-/apollo-cache-inmemory-1.6.3.tgz#826861d20baca4abc45f7ca7a874105905b8525d"
+  integrity sha512-S4B/zQNSuYc0M/1Wq8dJDTIO9yRgU0ZwDGnmlqxGGmFombOZb9mLjylewSfQKmjNpciZ7iUIBbJ0mHlPJTzdXg==
   dependencies:
     apollo-cache "^1.3.2"
     apollo-utilities "^1.3.2"
-    optimism "^0.9.0"
+    optimism "^0.10.0"
     ts-invariant "^0.4.0"
     tslib "^1.9.3"
 
@@ -6478,10 +6478,10 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
-optimism@^0.9.0:
-  version "0.9.5"
-  resolved "https://registry.yarnpkg.com/optimism/-/optimism-0.9.5.tgz#b8b5dc9150e97b79ddbf2d2c6c0e44de4d255527"
-  integrity sha512-lNvmuBgONAGrUbj/xpH69FjMOz1d0jvMNoOCKyVynUPzq2jgVlGL4jFYJqrUHzUfBv+jAFSCP61x5UkfbduYJA==
+optimism@^0.10.0:
+  version "0.10.2"
+  resolved "https://registry.yarnpkg.com/optimism/-/optimism-0.10.2.tgz#626b6fd28b0923de98ecb36a3fd2d3d4e5632dd9"
+  integrity sha512-zPfBIxFFWMmQboM9+Z4MSJqc1PXp82v1PFq/GfQaufI69mHKlup7ykGNnfuGIGssXJQkmhSodQ/k9EWwjd8O8A==
   dependencies:
     "@wry/context" "^0.4.0"