diff --git a/Web/Presenters/AuthPresenter.php b/Web/Presenters/AuthPresenter.php
index bb9d7272..bbb45d28 100644
--- a/Web/Presenters/AuthPresenter.php
+++ b/Web/Presenters/AuthPresenter.php
@@ -80,7 +80,11 @@ final class AuthPresenter extends OpenVKPresenter
             
             if(!Validator::i()->emailValid($this->postParam("email")))
                 $this->flashFail("err", tr("invalid_email_address"), tr("invalid_email_address_comment"));
-            
+
+            if(OPENVK_ROOT_CONF['openvk']['preferences']['security']['forceStrongPassword'])
+                if(!Validator::i()->passwordStrong($this->postParam("password")))
+                    $this->flashFail("err", tr("error"), tr("error_weak_password"));
+
             if (strtotime($this->postParam("birthday")) > time())
                 $this->flashFail("err", tr("invalid_birth_date"), tr("invalid_birth_date_comment"));
 
diff --git a/Web/Util/Validator.php b/Web/Util/Validator.php
index aa30a8b5..51085a3d 100644
--- a/Web/Util/Validator.php
+++ b/Web/Util/Validator.php
@@ -22,5 +22,9 @@ class Validator
         return (bool) preg_match("/^(?:t.me\/|@)?([a-zA-Z0-9_]{0,32})$/", $telegram);
     }
 
+    function passwordStrong(string $password): bool{
+        return (bool) preg_match("/^(?=.*[A-Z])(?=.*[0-9])(?=.*[a-z]).{8,}$/", $password);
+    }
+
     use TSimpleSingleton;
 }
diff --git a/locales/en.strings b/locales/en.strings
index 669bfc8b..87961ebc 100644
--- a/locales/en.strings
+++ b/locales/en.strings
@@ -992,6 +992,7 @@
 "error_upload_failed" = "Failed to upload a photo";
 "error_old_password" = "Old password does not match";
 "error_new_password" = "New password does not match";
+"error_weak_password" = "Password isn't strong enough. It should has at least 8 symbols, at least one capital letter and at least one digit."
 "error_shorturl_incorrect" = "The short address has an incorrect format.";
 "error_repost_fail" = "Failed to share post";
 "error_data_too_big" = "Attribute '$1' must be at most $2 $3 long";
diff --git a/locales/ru.strings b/locales/ru.strings
index ac7a537d..98928cd5 100644
--- a/locales/ru.strings
+++ b/locales/ru.strings
@@ -905,6 +905,7 @@
 "error_upload_failed" = "Не удалось загрузить фото";
 "error_old_password" = "Старый пароль не совпадает";
 "error_new_password" = "Новые пароли не совпадает";
+"error_weak_password" = "Ненадёжный пароль. Пароль должен содержать не менее 8 символов, цифры, прописные и строчные буквы";
 "error_shorturl_incorrect" = "Короткий адрес имеет некорректный формат.";
 "error_repost_fail" = "Не удалось поделиться записью";
 "error_data_too_big" = "Аттрибут '$1' не может быть длиннее $2 $3";
diff --git a/openvk-example.yml b/openvk-example.yml
index c2f794e4..4b6ab4aa 100644
--- a/openvk-example.yml
+++ b/openvk-example.yml
@@ -27,6 +27,7 @@ openvk:
             requirePhone: false
             forcePhoneVerification: false
             forceEmailVerification: false
+            forceStrongPassword: false
             enableSu: true
             rateLimits:
                 actions: 5