diff --git a/.circleci/config.yml b/.circleci/config.yml
index 45842de4..aa1aceea 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -66,10 +66,8 @@ jobs:
           name: Run tests
           command: npm test -- -- --coverage
       - run:
-          name: Install codecov and upload results
-          command: |
-              sudo npm install -g codecov
-              codecov
+          name: Upload code coverage reports to Codecov
+          command: ./node_modules/.bin/codecov
 
       - run:
           name: Build KaTeX
diff --git a/package-lock.json b/package-lock.json
index f0cab6cf..749018b3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -459,6 +459,12 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "argv": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/argv/-/argv-0.0.2.tgz",
+      "integrity": "sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas=",
+      "dev": true
+    },
     "arr-diff": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
@@ -2256,6 +2262,18 @@
       "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
       "dev": true
     },
+    "codecov": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.0.4.tgz",
+      "integrity": "sha512-KJyzHdg9B8U9LxXa7hS6jnEW5b1cNckLYc2YpnJ1nEFiOW+/iSzDHp+5MYEIQd9fN3/tC6WmGZmYiwxzkuGp/A==",
+      "dev": true,
+      "requires": {
+        "argv": "^0.0.2",
+        "ignore-walk": "^3.0.1",
+        "request": "^2.87.0",
+        "urlgrey": "^0.4.4"
+      }
+    },
     "collapse-white-space": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/collapse-white-space/-/collapse-white-space-1.0.4.tgz",
@@ -5126,6 +5144,15 @@
       "integrity": "sha512-pUh+xUQQhQzevjRHHFqqcTy0/dP/kS9I8HSrUydhihjuD09W6ldVWFtIrwhXdUJHis3i2rZNqEHpZH/cbinFbg==",
       "dev": true
     },
+    "ignore-walk": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.1.tgz",
+      "integrity": "sha512-DTVlMx3IYPe0/JJcYP7Gxg7ttZZu3IInhuEhbchuqneY9wWe5Ojy2mXLBaQFUQmo0AW2r3qG7m1mg86js+gnlQ==",
+      "dev": true,
+      "requires": {
+        "minimatch": "^3.0.4"
+      }
+    },
     "image-size": {
       "version": "0.5.5",
       "resolved": "https://registry.npmjs.org/image-size/-/image-size-0.5.5.tgz",
@@ -12274,6 +12301,12 @@
         "requires-port": "^1.0.0"
       }
     },
+    "urlgrey": {
+      "version": "0.4.4",
+      "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-0.4.4.tgz",
+      "integrity": "sha1-iS/pWWCAXoVRnxzUOJ8stMu3ZS8=",
+      "dev": true
+    },
     "use": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/use/-/use-3.1.0.tgz",
diff --git a/package.json b/package.json
index e8aa4d98..120a89d2 100644
--- a/package.json
+++ b/package.json
@@ -27,6 +27,7 @@
     "babel-register": "^6.26.0",
     "benchmark": "^2.1.4",
     "check-dependencies": "^1.1.0",
+    "codecov": "^3.0.4",
     "css-loader": "^1.0.0",
     "cssnano": "^4.0.1",
     "eslint": "^5.0.0",