diff --git a/apps/codebattle/assets/js/__fixtures__/signUpData.json b/apps/codebattle/assets/js/__fixtures__/signUpData.json
index f340d3f7e..b47e6ef28 100644
--- a/apps/codebattle/assets/js/__fixtures__/signUpData.json
+++ b/apps/codebattle/assets/js/__fixtures__/signUpData.json
@@ -85,6 +85,12 @@
       "Should be from 6 to 16 characters",
       "password"
     ],
+    [
+      "password validation: only special characters",
+      "!@#$%&*?",
+      "Should contain at least one letter or number",
+      "password"
+    ],
     [
       "password validation: long password",
       "11111111111111111",
diff --git a/apps/codebattle/assets/js/widgets/formik/index.js b/apps/codebattle/assets/js/widgets/formik/index.js
index 29a3f9fd4..94202eff2 100644
--- a/apps/codebattle/assets/js/widgets/formik/index.js
+++ b/apps/codebattle/assets/js/widgets/formik/index.js
@@ -66,6 +66,7 @@ const schemas = {
       .matches(/^\S*$/, "Can't contain empty symbols")
       .min(6, "Should be from 6 to 16 characters")
       .max(16, "Should be from 6 to 16 characters")
+      .matches(/[a-zA-Z0-9]/, "Should contain at least one letter or number")
       .matches(/[!@#$%^&*(),.?":{}|<>]/, "Should contain at least one special character")
       .required("Password required"),
     passwordConfirmation: Yup.string()