diff --git a/deno/lib/__tests__/string.test.ts b/deno/lib/__tests__/string.test.ts
index f45ec0ad8..b71ab9757 100644
--- a/deno/lib/__tests__/string.test.ts
+++ b/deno/lib/__tests__/string.test.ts
@@ -38,8 +38,10 @@ test("email validations", () => {
   expect(() => email.parse("asdf")).toThrow();
   expect(() => email.parse("@lkjasdf.com")).toThrow();
   expect(() => email.parse("asdf@sdf.")).toThrow();
-  // expect(() => email.parse("asdf@asdf.com-")).toThrow();
-  // expect(() => email.parse("asdf@-asdf.com")).toThrow();
+  expect(() => email.parse("asdf@asdf.com-")).toThrow();
+  expect(() => email.parse("asdf@-asdf.com")).toThrow();
+  expect(() => email.parse("asdf@-a(sdf.com")).toThrow();
+  expect(() => email.parse("asdf@-asdf.com(")).toThrow();
 });
 
 test("more email validations", () => {
diff --git a/deno/lib/types.ts b/deno/lib/types.ts
index 59680c296..c272fb944 100644
--- a/deno/lib/types.ts
+++ b/deno/lib/types.ts
@@ -515,7 +515,7 @@ const uuidRegex =
 // const emailRegex = /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i;
 // eslint-disable-next-line
 const emailRegex =
-  /^(([^<>()[\]\.,;:\s@\"]+(\.[^<>()[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i;
+  /^(([^<>()[\].,;:\s@"]+(\.[^<>()[\].,;:\s@"]+)*)|(".+"))@((?!-)([^<>()[\].,;:\s@"]+\.)+[^<>()[\].,;:\s@"]{1,})[^-<>()[\].,;:\s@"]$/i;
 
 // interface IsDateStringOptions extends StringDateOptions {
 /**
diff --git a/src/__tests__/string.test.ts b/src/__tests__/string.test.ts
index 28e4049a9..31df263c7 100644
--- a/src/__tests__/string.test.ts
+++ b/src/__tests__/string.test.ts
@@ -37,8 +37,10 @@ test("email validations", () => {
   expect(() => email.parse("asdf")).toThrow();
   expect(() => email.parse("@lkjasdf.com")).toThrow();
   expect(() => email.parse("asdf@sdf.")).toThrow();
-  // expect(() => email.parse("asdf@asdf.com-")).toThrow();
-  // expect(() => email.parse("asdf@-asdf.com")).toThrow();
+  expect(() => email.parse("asdf@asdf.com-")).toThrow();
+  expect(() => email.parse("asdf@-asdf.com")).toThrow();
+  expect(() => email.parse("asdf@-a(sdf.com")).toThrow();
+  expect(() => email.parse("asdf@-asdf.com(")).toThrow();
 });
 
 test("more email validations", () => {
diff --git a/src/types.ts b/src/types.ts
index ef27ec585..314ff546f 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -515,7 +515,7 @@ const uuidRegex =
 // const emailRegex = /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i;
 // eslint-disable-next-line
 const emailRegex =
-  /^(([^<>()[\]\.,;:\s@\"]+(\.[^<>()[\]\.,;:\s@\"]+)*)|(\".+\"))@(([^<>()[\]\.,;:\s@\"]+\.)+[^<>()[\]\.,;:\s@\"]{2,})$/i;
+  /^(([^<>()[\].,;:\s@"]+(\.[^<>()[\].,;:\s@"]+)*)|(".+"))@((?!-)([^<>()[\].,;:\s@"]+\.)+[^<>()[\].,;:\s@"]{1,})[^-<>()[\].,;:\s@"]$/i;
 
 // interface IsDateStringOptions extends StringDateOptions {
 /**