diff --git a/package-lock.json b/package-lock.json
index 631e2b336..b665413a4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,14 +17,14 @@
       "devDependencies": {
         "@frctl/fractal": "^1.5.13",
         "@frctl/mandelbrot": "^1.10.1",
-        "@frctl/nunjucks": "latest",
+        "@frctl/nunjucks": "*",
         "babel-core": "^6.26.0",
         "babel-plugin-transform-class-properties": "^6.24.1",
-        "babel-preset-es2015": "latest",
+        "babel-preset-es2015": "*",
         "babelify": "^8.0.0",
-        "boom": "latest",
+        "boom": "*",
         "browserify": "^16.2.2",
-        "cryptiles": "latest",
+        "cryptiles": "*",
         "del": "^3.0.0",
         "eslint": "^4.18.2",
         "eslint-config-airbnb-base": "^11.3.2",
@@ -4416,9 +4416,9 @@
       }
     },
     "node_modules/engine.io": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.2.0.tgz",
-      "integrity": "sha512-4KzwW3F3bk+KlzSOY57fj/Jx6LyRQ1nbcyIadehl+AnXjKT7gDO0ORdRi/84ixvMKTym6ZKuxvbzN62HDDU1Lg==",
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.2.1.tgz",
+      "integrity": "sha512-ECceEFcAaNRybd3lsGQKas3ZlMVjN3cyWwMP25D2i0zWfyiytVbTpRPa34qrr+FHddtpBVOmq4H/DCv1O0lZRA==",
       "dev": true,
       "dependencies": {
         "@types/cookie": "^0.4.1",
@@ -21898,9 +21898,9 @@
       }
     },
     "engine.io": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.2.0.tgz",
-      "integrity": "sha512-4KzwW3F3bk+KlzSOY57fj/Jx6LyRQ1nbcyIadehl+AnXjKT7gDO0ORdRi/84ixvMKTym6ZKuxvbzN62HDDU1Lg==",
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.2.1.tgz",
+      "integrity": "sha512-ECceEFcAaNRybd3lsGQKas3ZlMVjN3cyWwMP25D2i0zWfyiytVbTpRPa34qrr+FHddtpBVOmq4H/DCv1O0lZRA==",
       "dev": true,
       "requires": {
         "@types/cookie": "^0.4.1",