diff --git a/package.json b/package.json
index fa52f962c..f18a5ac28 100644
--- a/package.json
+++ b/package.json
@@ -85,9 +85,5 @@
   },
   "ember-addon": {
     "configPath": "tests/dummy/config"
-  },
-  "resolutions": {
-    "**/sane": "^2.5.2",
-    "ember-cli/testem": "~2.6.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 94239d451..097f6b7f7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3593,6 +3593,19 @@ execa@^0.9.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
+execa@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
+  integrity sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==
+  dependencies:
+    cross-spawn "^6.0.0"
+    get-stream "^4.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
 exists-stat@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/exists-stat/-/exists-stat-1.0.0.tgz#0660e3525a2e89d9e446129440c272edfa24b529"
@@ -4121,6 +4134,13 @@ get-stream@3.0.0, get-stream@^3.0.0:
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
   integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
 
+get-stream@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
+  integrity sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==
+  dependencies:
+    pump "^3.0.0"
+
 get-value@^2.0.3, get-value@^2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/get-value/-/get-value-2.0.6.tgz#dc15ca1c672387ca76bd37ac0a395ba2042a2c28"
@@ -7211,6 +7231,14 @@ pump@^2.0.0, pump@^2.0.1:
     end-of-stream "^1.1.0"
     once "^1.3.1"
 
+pump@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"
+  integrity sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
 pumpify@^1.3.3, pumpify@^1.3.5:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/pumpify/-/pumpify-1.5.1.tgz#36513be246ab27570b1a374a5ce278bfd74370ce"
@@ -7866,7 +7894,7 @@ safe-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
-sane@^2.2.0, sane@^2.5.2, sane@^4.0.0:
+sane@^2.2.0, sane@^2.5.2:
   version "2.5.2"
   resolved "https://registry.yarnpkg.com/sane/-/sane-2.5.2.tgz#b4dc1861c21b427e929507a3e751e2a2cb8ab3fa"
   integrity sha1-tNwYYcIbQn6SlQej51HiosuKs/o=
@@ -7882,6 +7910,21 @@ sane@^2.2.0, sane@^2.5.2, sane@^4.0.0:
   optionalDependencies:
     fsevents "^1.2.3"
 
+sane@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/sane/-/sane-4.0.1.tgz#af1e10466e924e1b888c104bb9925a0f1beb46dd"
+  integrity sha512-12M/pR2HqW0aPKBAnwBerocN/6BbdAydw/gzGouHOeOpLmam46uS2xwtI+Yl5ZRqPDaakEsYtXkW9q/D5aJSdQ==
+  dependencies:
+    anymatch "^2.0.0"
+    capture-exit "^1.2.0"
+    exec-sh "^0.2.0"
+    execa "^1.0.0"
+    fb-watchman "^2.0.0"
+    micromatch "^3.1.4"
+    minimist "^1.1.1"
+    walker "~1.0.5"
+    watch "~0.18.0"
+
 sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
@@ -8493,7 +8536,7 @@ temp@0.8.3:
     os-tmpdir "^1.0.0"
     rimraf "~2.2.6"
 
-testem@^2.0.0, testem@~2.6.0:
+testem@^2.0.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/testem/-/testem-2.6.0.tgz#96c022c61bfd4d3b37738dc7483c1e678427d85b"
   integrity sha1-lsAixhv9TTs3c43HSDweZ4Qn2Fs=