diff --git a/pkgs/development/python-modules/email-validator/default.nix b/pkgs/development/python-modules/email-validator/default.nix
index b6112bb87dc..bdd830810fb 100644
--- a/pkgs/development/python-modules/email-validator/default.nix
+++ b/pkgs/development/python-modules/email-validator/default.nix
@@ -44,10 +44,9 @@ buildPythonPackage rec {
   ];
 
   meta = with lib; {
-    description = "A robust email syntax and deliverability validation library for Python 2.x/3.x.";
+    description = "A robust email syntax and deliverability validation library";
     homepage    = "https://github.com/JoshData/python-email-validator";
     license     = licenses.cc0;
     maintainers = with maintainers; [ siddharthist ];
-    platforms   = platforms.unix;
   };
 }
diff --git a/pkgs/development/python-modules/fastapi-mail/default.nix b/pkgs/development/python-modules/fastapi-mail/default.nix
index 8b3c6d0ed05..973c810b634 100644
--- a/pkgs/development/python-modules/fastapi-mail/default.nix
+++ b/pkgs/development/python-modules/fastapi-mail/default.nix
@@ -3,7 +3,7 @@
 , aiosmtplib
 , blinker
 , buildPythonPackage
-, email_validator
+, email-validator
 , fakeredis
 , fastapi
 , fetchFromGitHub
@@ -45,7 +45,7 @@ buildPythonPackage rec {
     aioredis
     aiosmtplib
     blinker
-    email_validator
+    email-validator
     fakeredis
     fastapi
     httpx
diff --git a/pkgs/development/python-modules/flask-admin/default.nix b/pkgs/development/python-modules/flask-admin/default.nix
index 6a1ea3991cf..75573c7a69d 100644
--- a/pkgs/development/python-modules/flask-admin/default.nix
+++ b/pkgs/development/python-modules/flask-admin/default.nix
@@ -2,7 +2,7 @@
 , arrow
 , buildPythonPackage
 , colour
-, email_validator
+, email-validator
 , enum34
 , fetchPypi
 , flask
@@ -45,7 +45,7 @@ buildPythonPackage rec {
   checkInputs = [
     arrow
     colour
-    email_validator
+    email-validator
     flask_sqlalchemy
     flask-babelex
     flask-mongoengine
diff --git a/pkgs/development/python-modules/flask-appbuilder/default.nix b/pkgs/development/python-modules/flask-appbuilder/default.nix
index 5276fceb3f5..9b0e993b1eb 100644
--- a/pkgs/development/python-modules/flask-appbuilder/default.nix
+++ b/pkgs/development/python-modules/flask-appbuilder/default.nix
@@ -5,7 +5,7 @@
 , apispec
 , colorama
 , click
-, email_validator
+, email-validator
 , flask
 , flask-babel
 , flask_login
@@ -56,7 +56,7 @@ buildPythonPackage rec {
     apispec
     colorama
     click
-    email_validator
+    email-validator
     flask
     flask-babel
     flask_login
diff --git a/pkgs/development/python-modules/flask-mongoengine/default.nix b/pkgs/development/python-modules/flask-mongoengine/default.nix
index ee05ff42033..e411d1f55a7 100644
--- a/pkgs/development/python-modules/flask-mongoengine/default.nix
+++ b/pkgs/development/python-modules/flask-mongoengine/default.nix
@@ -8,7 +8,7 @@
 , nose
 , rednose
 , coverage
-, email_validator
+, email-validator
 }:
 
 buildPythonPackage rec {
@@ -23,7 +23,7 @@ buildPythonPackage rec {
   };
 
   propagatedBuildInputs = [
-    email_validator
+    email-validator
     flask
     flask-wtf
     mongoengine
diff --git a/pkgs/development/python-modules/flask-security-too/default.nix b/pkgs/development/python-modules/flask-security-too/default.nix
index ec088d5332c..e1a598d3a0b 100644
--- a/pkgs/development/python-modules/flask-security-too/default.nix
+++ b/pkgs/development/python-modules/flask-security-too/default.nix
@@ -23,7 +23,7 @@
 
 # propagates
 , blinker
-, email_validator
+, email-validator
 , flask
 , flask_login
 , flask_principal
@@ -54,7 +54,7 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [
     blinker
-    email_validator
+    email-validator
     flask
     flask_login
     flask_principal
diff --git a/pkgs/development/python-modules/flask-wtf/default.nix b/pkgs/development/python-modules/flask-wtf/default.nix
index fcfa4835be7..014f250128c 100644
--- a/pkgs/development/python-modules/flask-wtf/default.nix
+++ b/pkgs/development/python-modules/flask-wtf/default.nix
@@ -4,7 +4,7 @@
 , flask
 , itsdangerous
 , wtforms
-, email_validator
+, email-validator
 , pytestCheckHook
 }:
 
@@ -25,7 +25,7 @@ buildPythonPackage rec {
   ];
 
   passthru.optional-dependencies = {
-    email = [ email_validator ];
+    email = [ email-validator ];
   };
 
   checkInputs = [
diff --git a/pkgs/development/python-modules/ihatemoney/default.nix b/pkgs/development/python-modules/ihatemoney/default.nix
index dafea4e2cb2..bacaea2f2cb 100644
--- a/pkgs/development/python-modules/ihatemoney/default.nix
+++ b/pkgs/development/python-modules/ihatemoney/default.nix
@@ -10,7 +10,7 @@
 , cachetools
 , click
 , dnspython
-, email_validator
+, email-validator
 , flask
 , flask-babel
 , flask-cors
@@ -60,7 +60,7 @@ buildPythonPackage rec {
     click
     debts
     dnspython
-    email_validator
+    email-validator
     flask
     flask_mail
     flask_migrate
diff --git a/pkgs/development/python-modules/pydantic/default.nix b/pkgs/development/python-modules/pydantic/default.nix
index a886b5ba78c..25a5d54d529 100644
--- a/pkgs/development/python-modules/pydantic/default.nix
+++ b/pkgs/development/python-modules/pydantic/default.nix
@@ -2,7 +2,7 @@
 , buildPythonPackage
 , cython
 , devtools
-, email_validator
+, email-validator
 , fetchFromGitHub
 , pytest-mock
 , pytestCheckHook
@@ -57,7 +57,7 @@ buildPythonPackage rec {
 
   propagatedBuildInputs = [
     devtools
-    email_validator
+    email-validator
     python-dotenv
     typing-extensions
   ];
diff --git a/pkgs/development/python-modules/vaa/default.nix b/pkgs/development/python-modules/vaa/default.nix
index 783cc7bd681..d43f007c35c 100644
--- a/pkgs/development/python-modules/vaa/default.nix
+++ b/pkgs/development/python-modules/vaa/default.nix
@@ -9,7 +9,7 @@
 , marshmallow
 , pyschemes
 , wtforms
-, email_validator
+, email-validator
 }:
 
 buildPythonPackage rec {
@@ -42,7 +42,7 @@ buildPythonPackage rec {
     marshmallow
     pyschemes
     wtforms
-    email_validator
+    email-validator
   ];
 
   pythonImportsCheck = [ "vaa" ];
diff --git a/pkgs/development/python-modules/wtforms/default.nix b/pkgs/development/python-modules/wtforms/default.nix
index c6a3ecf2088..ef2e06cc3e7 100644
--- a/pkgs/development/python-modules/wtforms/default.nix
+++ b/pkgs/development/python-modules/wtforms/default.nix
@@ -4,7 +4,7 @@
 , markupsafe
 , babel
 , pytestCheckHook
-, email_validator
+, email-validator
 }:
 
 buildPythonPackage rec {
@@ -22,7 +22,7 @@ buildPythonPackage rec {
 
   checkInputs = [
     pytestCheckHook
-    email_validator
+    email-validator
   ];
 
   pythonImportsCheck = [ "wtforms" ];
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 04f93fd015e..326e0a74913 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -69,6 +69,7 @@ mapAliases ({
   dogpile_cache = dogpile-cache; # added 2021-10-28
   dogpile-core = throw "dogpile-core is no longer maintained, use dogpile-cache instead"; # added 2021-11-20
   eebrightbox = throw "eebrightbox is unmaintained upstream and has therefore been removed"; # added 2022-02-03
+  email_validator = email-validator; # added 2022-06-22
   fake_factory = throw "fake_factory has been removed because it is unused and deprecated by upstream since 2016."; # added 2022-05-30
   faulthandler = throw "faulthandler is built into ${python.executable}"; # added 2021-07-12
   flask_testing = flask-testing; # added 2022-04-25
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9ffa21b2699..0b12f32360a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2739,7 +2739,7 @@ in {
 
   emailthreads = callPackage ../development/python-modules/emailthreads { };
 
-  email_validator = callPackage ../development/python-modules/email-validator { };
+  email-validator = callPackage ../development/python-modules/email-validator { };
 
   embrace = callPackage ../development/python-modules/embrace { };