diff --git a/package.json b/package.json
index ae409e943bc..cbf72552909 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "rimraf": "^2.6.2",
     "script-loader": "~0.7.0",
     "should": "^11.1.1",
-    "simple-git": "^1.65.0",
+    "simple-git": "^3.3.0",
     "sinon": "^2.3.2",
     "style-loader": "^0.18.1",
     "url-loader": "~0.5.0",
diff --git a/yarn.lock b/yarn.lock
index 6bbce2704a7..b5778256d33 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,16 @@
 # yarn lockfile v1
 
 
+"@kwsites/file-exists@^1.1.1":
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/@kwsites/file-exists/-/file-exists-1.1.1.tgz#ad1efcac13e1987d8dbaf235ef3be5b0d96faa99"
+  dependencies:
+    debug "^4.1.1"
+
+"@kwsites/promise-deferred@^1.1.1":
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/@kwsites/promise-deferred/-/promise-deferred-1.1.1.tgz#8ace5259254426ccef57f3175bc64ed7095ed919"
+
 abbrev@1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.0.tgz#d0554c2256636e2f56e7c2e5ad183f859428d81f"
@@ -936,7 +946,7 @@ date-now@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
 
-debug@2, debug@^2.1.3, debug@^2.2.0, debug@^2.6.7, debug@^2.6.8:
+debug@2, debug@^2.1.3, debug@^2.2.0, debug@^2.6.8:
   version "2.6.8"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
   dependencies:
@@ -948,6 +958,12 @@ debug@2.6.0:
   dependencies:
     ms "0.7.2"
 
+debug@^4.1.1, debug@^4.3.3:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.4.tgz#1319f6579357f2338d3337d2cdd4914bb5dcc865"
+  dependencies:
+    ms "2.1.2"
+
 debug@~2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
@@ -2542,6 +2558,10 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+ms@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
+
 mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
@@ -3695,11 +3715,13 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
-simple-git@^1.65.0:
-  version "1.74.1"
-  resolved "https://registry.yarnpkg.com/simple-git/-/simple-git-1.74.1.tgz#802f1cb6f38e826aa238bda19990e7e3b3198181"
+simple-git@^3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/simple-git/-/simple-git-3.3.0.tgz#91692d576f851be691124781b79872b246d2f92c"
   dependencies:
-    debug "^2.6.7"
+    "@kwsites/file-exists" "^1.1.1"
+    "@kwsites/promise-deferred" "^1.1.1"
+    debug "^4.3.3"
 
 sinon@^2.3.2:
   version "2.3.8"