diff --git a/examples/benchmark/package.json b/examples/benchmark/package.json
index ebb345c1..b77e7267 100644
--- a/examples/benchmark/package.json
+++ b/examples/benchmark/package.json
@@ -1,10 +1,10 @@
 {
   "name": "fast-csv-benchmarks",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "private": true,
   "description": "fast-csv examples",
   "dependencies": {
-    "fast-csv": "^4.0.0-alpha.0"
+    "fast-csv": "^4.0.0"
   },
   "scripts": {
     "benchmarks": "node ./index.js"
diff --git a/examples/example-runner/package.json b/examples/example-runner/package.json
index b6924f05..92d0bf6a 100644
--- a/examples/example-runner/package.json
+++ b/examples/example-runner/package.json
@@ -1,6 +1,6 @@
 {
   "name": "example-runner",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "private": true,
   "description": "Runs examples and checks output",
   "bin": {
diff --git a/examples/fast-csv-js/package.json b/examples/fast-csv-js/package.json
index cd473d57..7d539cee 100644
--- a/examples/fast-csv-js/package.json
+++ b/examples/fast-csv-js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fast-csv-js-examples",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "private": true,
   "description": "fast-csv examples",
   "scripts": {
@@ -9,7 +9,7 @@
     "example": "run-examples run"
   },
   "dependencies": {
-    "example-runner": "^4.0.0-alpha.0",
-    "fast-csv": "^4.0.0-alpha.0"
+    "example-runner": "^4.0.0",
+    "fast-csv": "^4.0.0"
   }
 }
diff --git a/examples/fast-csv-ts/package.json b/examples/fast-csv-ts/package.json
index b0ee4103..878e8c4b 100644
--- a/examples/fast-csv-ts/package.json
+++ b/examples/fast-csv-ts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fast-csv-ts-examples",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "private": true,
   "description": "fast-csv examples",
   "scripts": {
@@ -12,8 +12,8 @@
     "compile": "tsc -p tsconfig.build.json"
   },
   "dependencies": {
-    "example-runner": "^4.0.0-alpha.0",
-    "fast-csv": "^4.0.0-alpha.0",
+    "example-runner": "^4.0.0",
+    "fast-csv": "^4.0.0",
     "typescript": "^3.7.3"
   }
 }
diff --git a/examples/formatting-js/package.json b/examples/formatting-js/package.json
index b328a001..42f616c7 100644
--- a/examples/formatting-js/package.json
+++ b/examples/formatting-js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@fast-csv/format-js-examples",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "private": true,
   "description": "fast-csv formatting examples",
   "scripts": {
@@ -9,7 +9,7 @@
     "example": "run-examples run"
   },
   "dependencies": {
-    "@fast-csv/format": "^4.0.0-alpha.0",
-    "example-runner": "^4.0.0-alpha.0"
+    "@fast-csv/format": "^4.0.0",
+    "example-runner": "^4.0.0"
   }
 }
diff --git a/examples/formatting-ts/package.json b/examples/formatting-ts/package.json
index 1d9923c7..6c226067 100644
--- a/examples/formatting-ts/package.json
+++ b/examples/formatting-ts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@fast-csv/formatting-ts-examples",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "private": true,
   "description": "fast-csv formatting typescript examples",
   "scripts": {
@@ -12,8 +12,8 @@
     "compile": "tsc -p tsconfig.build.json"
   },
   "dependencies": {
-    "@fast-csv/format": "^4.0.0-alpha.0",
-    "example-runner": "^4.0.0-alpha.0",
+    "@fast-csv/format": "^4.0.0",
+    "example-runner": "^4.0.0",
     "typescript": "^3.7.3"
   }
 }
diff --git a/examples/parsing-js/package.json b/examples/parsing-js/package.json
index 37a8fe01..97671032 100644
--- a/examples/parsing-js/package.json
+++ b/examples/parsing-js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@fast-csv/parse-js-examples",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "private": true,
   "description": "fast-csv parsing examples",
   "scripts": {
@@ -9,8 +9,8 @@
     "example": "run-examples run"
   },
   "dependencies": {
-    "@fast-csv/parse": "^4.0.0-alpha.0",
-    "example-runner": "^4.0.0-alpha.0",
+    "@fast-csv/parse": "^4.0.0",
+    "example-runner": "^4.0.0",
     "globby": "^10.0.1",
     "jest-diff": "^24.9.0"
   }
diff --git a/examples/parsing-ts/package.json b/examples/parsing-ts/package.json
index f8e2cfc3..4471c75e 100644
--- a/examples/parsing-ts/package.json
+++ b/examples/parsing-ts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@fast-csv/parse-ts-examples",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "private": true,
   "description": "fast-csv parsing typescript examples",
   "scripts": {
@@ -12,8 +12,8 @@
     "compile": "tsc -p tsconfig.build.json"
   },
   "dependencies": {
-    "@fast-csv/parse": "^4.0.0-alpha.0",
-    "example-runner": "^4.0.0-alpha.0",
+    "@fast-csv/parse": "^4.0.0",
+    "example-runner": "^4.0.0",
     "typescript": "^3.7.3"
   }
 }
diff --git a/lerna.json b/lerna.json
index 463303f4..11384309 100644
--- a/lerna.json
+++ b/lerna.json
@@ -3,5 +3,5 @@
     "examples/*",
     "packages/*"
   ],
-  "version": "4.0.0-alpha.0"
+  "version": "4.0.0"
 }
diff --git a/packages/fast-csv/package.json b/packages/fast-csv/package.json
index e0705929..38083794 100644
--- a/packages/fast-csv/package.json
+++ b/packages/fast-csv/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fast-csv",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "description": "CSV parser and writer",
   "main": "./build/src/index.js",
   "types": "./build/src/index.d.ts",
@@ -35,8 +35,8 @@
     "node": ">=8.0.0"
   },
   "dependencies": {
-    "@fast-csv/format": "^4.0.0-alpha.0",
-    "@fast-csv/parse": "^4.0.0-alpha.0",
+    "@fast-csv/format": "^4.0.0",
+    "@fast-csv/parse": "^4.0.0",
     "@types/node": "^12.12.17"
   }
 }
diff --git a/packages/format/package.json b/packages/format/package.json
index 278014c5..9235ecb4 100644
--- a/packages/format/package.json
+++ b/packages/format/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@fast-csv/format",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "description": "fast-csv formatting module",
   "keywords": [
     "csv",
diff --git a/packages/parse/package.json b/packages/parse/package.json
index 95416c6f..6efdd963 100644
--- a/packages/parse/package.json
+++ b/packages/parse/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@fast-csv/parse",
-  "version": "4.0.0-alpha.0",
+  "version": "4.0.0",
   "description": "fast-csv parsing package",
   "keywords": [
     "csv",