diff --git a/chronos/package.json b/chronos/package.json
index 2e9843ba84..a1b9258700 100644
--- a/chronos/package.json
+++ b/chronos/package.json
@@ -10,7 +10,7 @@
     "lodash.intersection": "^4.4.0",
     "now-env": "^3.1.0",
     "postmark": "^1.3.1",
-    "raven": "^2.1.1",
+    "raven": "^2.6.3",
     "rethinkdbdash": "^2.3.29",
     "source-map-support": "^0.4.15",
     "toobusy-js": "^0.5.1"
diff --git a/chronos/yarn.lock b/chronos/yarn.lock
index be3473292a..236de6ac4e 100644
--- a/chronos/yarn.lock
+++ b/chronos/yarn.lock
@@ -22,6 +22,10 @@ bull@3.3.10:
     semver "^5.4.1"
     uuid "^3.1.0"
 
+charenc@~0.0.1:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/charenc/-/charenc-0.0.2.tgz#c0a1d2f3a7092e03774bfa83f14c0fc5790a8667"
+
 cluster-key-slot@^1.0.6:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/cluster-key-slot/-/cluster-key-slot-1.0.8.tgz#7654556085a65330932a2e8b5976f8e2d0b3e414"
@@ -41,6 +45,10 @@ cron-parser@^2.4.1:
     is-nan "^1.2.1"
     moment-timezone "^0.5.0"
 
+crypt@~0.0.1:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/crypt/-/crypt-0.0.2.tgz#88d7ff7ec0dfb86f713dc87bbb42d044d3e6c41b"
+
 debug@^2.2.0:
   version "2.6.8"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
@@ -138,6 +146,10 @@ ioredis@^3.1.4:
     redis-commands "^1.2.0"
     redis-parser "^2.4.0"
 
+is-buffer@~1.1.1:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
+
 is-nan@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/is-nan/-/is-nan-1.2.1.tgz#9faf65b6fb6db24b7f5c0628475ea71f988401e2"
@@ -163,10 +175,6 @@ json-stringify-pretty-compact@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/json-stringify-pretty-compact/-/json-stringify-pretty-compact-1.0.4.tgz#d5161131be27fd9748391360597fcca250c6c5ce"
 
-json-stringify-safe@5.0.1:
-  version "5.0.1"
-  resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
-
 lodash.assign@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/lodash.assign/-/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
@@ -249,9 +257,13 @@ loose-envify@^1.0.0:
   dependencies:
     js-tokens "^3.0.0"
 
-lsmod@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/lsmod/-/lsmod-1.0.0.tgz#9a00f76dca36eb23fa05350afe1b585d4299e64b"
+md5@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/md5/-/md5-2.2.1.tgz#53ab38d5fe3c8891ba465329ea23fac0540126f9"
+  dependencies:
+    charenc "~0.0.1"
+    crypt "~0.0.1"
+    is-buffer "~1.1.1"
 
 merge@1.2.0:
   version "1.2.0"
@@ -302,14 +314,13 @@ promise@^7.1.1:
   dependencies:
     asap "~2.0.3"
 
-raven@^2.1.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/raven/-/raven-2.1.2.tgz#4aa7a72c4b3061d7fde06bfc62d669a74a651e27"
+raven@^2.6.3:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/raven/-/raven-2.6.3.tgz#207475a12809277ef54eaceafe2597ff65262ab4"
   dependencies:
     cookie "0.3.1"
-    json-stringify-safe "5.0.1"
-    lsmod "1.0.0"
-    stack-trace "0.0.9"
+    md5 "^2.2.1"
+    stack-trace "0.0.10"
     timed-out "4.0.1"
     uuid "3.0.0"
 
@@ -345,9 +356,9 @@ source-map@^0.5.6:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
-stack-trace@0.0.9:
-  version "0.0.9"
-  resolved "https://registry.yarnpkg.com/stack-trace/-/stack-trace-0.0.9.tgz#a8f6eaeca90674c333e7c43953f275b451510695"
+stack-trace@0.0.10:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/stack-trace/-/stack-trace-0.0.10.tgz#547c70b347e8d32b4e108ea1a2a159e5fdde19c0"
 
 timed-out@4.0.1:
   version "4.0.1"