diff --git a/packages/random-name/package.json b/packages/random-name/package.json
index f777da46a..6a9c40044 100644
--- a/packages/random-name/package.json
+++ b/packages/random-name/package.json
@@ -6,6 +6,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/regex/package.json b/packages/regex/package.json
index 76196a5b1..1852f5076 100644
--- a/packages/regex/package.json
+++ b/packages/regex/package.json
@@ -6,6 +6,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/use-dataloader/package.json b/packages/use-dataloader/package.json
index 4fa0d8e95..f229e56f6 100644
--- a/packages/use-dataloader/package.json
+++ b/packages/use-dataloader/package.json
@@ -12,6 +12,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/use-gtm/package.json b/packages/use-gtm/package.json
index eb3d884d1..659e97a78 100644
--- a/packages/use-gtm/package.json
+++ b/packages/use-gtm/package.json
@@ -14,6 +14,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/use-i18n/package.json b/packages/use-i18n/package.json
index 3b507317d..6cfd7cd7b 100644
--- a/packages/use-i18n/package.json
+++ b/packages/use-i18n/package.json
@@ -14,6 +14,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/use-media/package.json b/packages/use-media/package.json
index 06e162614..1fd125235 100644
--- a/packages/use-media/package.json
+++ b/packages/use-media/package.json
@@ -13,6 +13,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/use-query-params/package.json b/packages/use-query-params/package.json
index fa9d76e9e..f5361f96d 100644
--- a/packages/use-query-params/package.json
+++ b/packages/use-query-params/package.json
@@ -15,6 +15,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/use-random-name/package.json b/packages/use-random-name/package.json
index 4e1e7f3a5..e78b156c2 100644
--- a/packages/use-random-name/package.json
+++ b/packages/use-random-name/package.json
@@ -6,6 +6,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/use-segment/package.json b/packages/use-segment/package.json
index 80f2d9aaa..dd710224f 100644
--- a/packages/use-segment/package.json
+++ b/packages/use-segment/package.json
@@ -12,6 +12,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },
diff --git a/packages/use-storage/package.json b/packages/use-storage/package.json
index ef7023bb5..ee0a6698d 100644
--- a/packages/use-storage/package.json
+++ b/packages/use-storage/package.json
@@ -6,6 +6,7 @@
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "sideEffects": false,
   "browser": {
     "dist/index.js": "./dist/index.browser.js"
   },