diff --git a/package-lock.json b/package-lock.json
index 1e8a8ca3..5ebe8b9d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "algolia-firebase-functions",
-  "version": "3.2.0",
+  "version": "4.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -406,6 +406,7 @@
       "version": "1.7.2",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.7.2.tgz",
       "integrity": "sha512-+DUO6pnp3udV/v2VfUWgaY5BIE1IfT7lLfeDzPVeMT1XKkaAp9LgSI9x5RtrFQoZ9Oi0PgXQQHPaoKu7dCjVxw==",
+      "dev": true,
       "requires": {
         "type-detect": "4.0.8"
       }
@@ -414,6 +415,7 @@
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-6.0.1.tgz",
       "integrity": "sha512-MZPUxrmFubI36XS1DI3qmI0YdN1gks62JtFZvxR67ljjSNCeK6U08Zx4msEWOXuofgqUt6zPHSi1H9fbjR/NRA==",
+      "dev": true,
       "requires": {
         "@sinonjs/commons": "^1.7.0"
       }
@@ -422,6 +424,7 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-5.0.1.tgz",
       "integrity": "sha512-KaiQ5pBf1MpS09MuA0kp6KBQt2JUOQycqVG1NZXvzeaXe5LGFqAKueIS0bw4w0P9r7KuBSVdUk5QjXsUdu2CxQ==",
+      "dev": true,
       "requires": {
         "@sinonjs/commons": "^1",
         "@sinonjs/samsam": "^5.0.2"
@@ -431,6 +434,7 @@
       "version": "5.0.3",
       "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-5.0.3.tgz",
       "integrity": "sha512-QucHkc2uMJ0pFGjJUDP3F9dq5dx8QIaqISl9QgwLOh6P9yv877uONPGXh/OH/0zmM3tW1JjuJltAZV2l7zU+uQ==",
+      "dev": true,
       "requires": {
         "@sinonjs/commons": "^1.6.0",
         "lodash.get": "^4.4.2",
@@ -440,7 +444,8 @@
     "@sinonjs/text-encoding": {
       "version": "0.7.1",
       "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz",
-      "integrity": "sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ=="
+      "integrity": "sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==",
+      "dev": true
     },
     "@tootallnate/once": {
       "version": "1.1.2",
@@ -2517,7 +2522,8 @@
     "isarray": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
-      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8="
+      "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
+      "dev": true
     },
     "isexe": {
       "version": "2.0.0",
@@ -2591,7 +2597,8 @@
     "just-extend": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-4.1.0.tgz",
-      "integrity": "sha512-ApcjaOdVTJ7y4r08xI5wIqpvwS48Q0PBG4DJROcEkH1f8MdAiNFyFxz3xoL0LWAVwjrwPYZdVHHxhRHcx/uGLA=="
+      "integrity": "sha512-ApcjaOdVTJ7y4r08xI5wIqpvwS48Q0PBG4DJROcEkH1f8MdAiNFyFxz3xoL0LWAVwjrwPYZdVHHxhRHcx/uGLA==",
+      "dev": true
     },
     "jwa": {
       "version": "1.4.1",
@@ -2664,7 +2671,8 @@
     "lodash.get": {
       "version": "4.4.2",
       "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
-      "integrity": "sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk="
+      "integrity": "sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=",
+      "dev": true
     },
     "lodash.has": {
       "version": "4.5.2",
@@ -2981,6 +2989,7 @@
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/nise/-/nise-4.0.3.tgz",
       "integrity": "sha512-EGlhjm7/4KvmmE6B/UFsKh7eHykRl9VH+au8dduHLCyWUO/hr7+N+WtTvDUwc9zHuM1IaIJs/0lQ6Ag1jDkQSg==",
+      "dev": true,
       "requires": {
         "@sinonjs/commons": "^1.7.0",
         "@sinonjs/fake-timers": "^6.0.0",
@@ -2993,6 +3002,7 @@
           "version": "1.8.0",
           "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.8.0.tgz",
           "integrity": "sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==",
+          "dev": true,
           "requires": {
             "isarray": "0.0.1"
           }
@@ -3701,6 +3711,7 @@
       "version": "9.0.2",
       "resolved": "https://registry.npmjs.org/sinon/-/sinon-9.0.2.tgz",
       "integrity": "sha512-0uF8Q/QHkizNUmbK3LRFqx5cpTttEVXudywY9Uwzy8bTfZUhljZ7ARzSxnRHWYWtVTeh4Cw+tTb3iU21FQVO9A==",
+      "dev": true,
       "requires": {
         "@sinonjs/commons": "^1.7.2",
         "@sinonjs/fake-timers": "^6.0.1",
@@ -3714,17 +3725,20 @@
         "diff": {
           "version": "4.0.2",
           "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
-          "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A=="
+          "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
+          "dev": true
         },
         "has-flag": {
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
-          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ=="
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true
         },
         "supports-color": {
           "version": "7.1.0",
           "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.1.0.tgz",
           "integrity": "sha512-oRSIpR8pxT1Wr2FquTNnGet79b3BWljqOuoW/h4oBhxJ/HUbX5nX6JSruTkvXDCFMwDPvsaTTbvMLKZWSy0R5g==",
+          "dev": true,
           "requires": {
             "has-flag": "^4.0.0"
           }
@@ -4012,7 +4026,8 @@
     "type-detect": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
-      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g=="
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "dev": true
     },
     "type-fest": {
       "version": "0.8.1",
diff --git a/package.json b/package.json
index 9d76d7b9..00462557 100644
--- a/package.json
+++ b/package.json
@@ -29,14 +29,14 @@
   "dependencies": {
     "algoliasearch": "^4.0.1",
     "firebase-admin": "8.12.1",
-    "firebase-functions": "^3.3.0",
-    "sinon": "^9.0.1"
+    "firebase-functions": "^3.3.0"
   },
   "devDependencies": {
     "eslint": "^6.8.0",
     "eslint-config-airbnb-base": "^14.0.0",
     "eslint-plugin-import": "^2.20.1",
     "firebase-functions-test": "^0.2.0",
-    "mocha": "^7.0.1"
+    "mocha": "^7.0.1",
+    "sinon": "^9.0.2"
   }
 }