diff --git a/src/common/components/configurationForm/totalMemoryInput.jsx b/src/common/components/configurationForm/totalMemoryInput.jsx
index 438ca5e..99e4e09 100644
--- a/src/common/components/configurationForm/totalMemoryInput.jsx
+++ b/src/common/components/configurationForm/totalMemoryInput.jsx
@@ -48,8 +48,8 @@ const TotalMemoryInput = ({ tooltip }) => {
         required="required"
         min={1}
         max={MAX_NUMERIC_VALUE}
-        step="any"
-        pattern="[0-9]+([.][0-9]+)?"
+        step={1}
+        pattern="[0-9]{1,6}"
         placeholder="Memory size (RAM, required)"
       />
       <Field
diff --git a/src/common/components/configurationForm/validation.js b/src/common/components/configurationForm/validation.js
index bfa86cb..850160b 100644
--- a/src/common/components/configurationForm/validation.js
+++ b/src/common/components/configurationForm/validation.js
@@ -32,11 +32,10 @@ export const validationSchema = Yup.object().shape({
     .oneOf([SIZE_UNIT_MB, SIZE_UNIT_GB], 'Unsupported unit'),
   totalMemory: Yup.number()
     .required('Required')
+    .integer('Must be an integer')
     .when('totalMemoryUnit', (totalMemoryUnit, schema) => {
       if (totalMemoryUnit === SIZE_UNIT_MB) {
-        return schema
-          .min(MIN_MB_MEMORY, `Must be greater than or equal to ${MIN_MB_MEMORY} MB`)
-          .integer()
+        return schema.min(MIN_MB_MEMORY, `Must be greater than or equal to ${MIN_MB_MEMORY} MB`)
       }
       return schema.min(1, 'Must be greater than zero')
     })