diff --git a/package.json b/package.json
index 724e9b3f..2fd18962 100644
--- a/package.json
+++ b/package.json
@@ -124,7 +124,6 @@
     "postcss-simple-vars": "^5.0.2",
     "pre-commit": "^1.2.2",
     "prettier-eslint-cli": "5.0.0",
-    "react-testing-library": "8.0.1",
     "run-with-testrpc": "0.3.1",
     "storybook-host": "^5.0.3",
     "storybook-router": "^0.3.3",
diff --git a/src/components/forms/validator.js b/src/components/forms/validator.js
index 67fdc27f..d885bc59 100644
--- a/src/components/forms/validator.js
+++ b/src/components/forms/validator.js
@@ -70,4 +70,12 @@ export const inLimit = (limit: number, base: number, baseText: string, symbol: s
   return `Should not exceed ${max} ${symbol} (amount to reach ${baseText})`
 }
 
+export const differentFrom = (diffValue: string) => (value: string) => {
+  if (value === diffValue.toString()) {
+    return `Value should be different than ${value}`
+  }
+
+  return undefined
+}
+
 export const noErrorsOn = (name: string, errors: Object) => errors[name] === undefined
diff --git a/src/routes/safe/components/Settings/ThresholdSettings/ChangeThreshold/index.jsx b/src/routes/safe/components/Settings/ThresholdSettings/ChangeThreshold/index.jsx
index 5155cb37..df64e3e5 100644
--- a/src/routes/safe/components/Settings/ThresholdSettings/ChangeThreshold/index.jsx
+++ b/src/routes/safe/components/Settings/ThresholdSettings/ChangeThreshold/index.jsx
@@ -7,7 +7,7 @@ import IconButton from '@material-ui/core/IconButton'
 import SelectField from '~/components/forms/SelectField'
 import MenuItem from '@material-ui/core/MenuItem'
 import {
-  composeValidators, minValue, mustBeInteger, required,
+  composeValidators, minValue, mustBeInteger, required, differentFrom,
 } from '~/components/forms/validator'
 import Field from '~/components/forms/Field'
 import GnoForm from '~/components/forms/GnoForm'
@@ -33,10 +33,11 @@ const THRESHOLD_FIELD_NAME = 'threshold'
 const ChangeThreshold = ({
   onClose, owners, threshold, classes, onChangeThreshold,
 }: Props) => {
-  const handleSubmit = (values) => {
+  const handleSubmit = async (values) => {
     const newThreshold = values[THRESHOLD_FIELD_NAME]
 
-    onChangeThreshold(newThreshold)
+    await onChangeThreshold(newThreshold)
+    onClose()
   }
 
   return (
@@ -50,10 +51,10 @@ const ChangeThreshold = ({
         </IconButton>
       </Row>
       <Hairline />
-      <Block className={classes.modalContent}>
-        <GnoForm onSubmit={handleSubmit} initialValues={{ threshold: threshold.toString() }}>
-          {() => (
-            <React.Fragment>
+      <GnoForm onSubmit={handleSubmit} initialValues={{ threshold: threshold.toString() }}>
+        {() => (
+          <React.Fragment>
+            <Block className={classes.modalContent}>
               <Row>
                 <Paragraph>
                   Every transaction outside any specified daily limits, needs to be confirmed by all specified owners.
@@ -70,7 +71,7 @@ const ChangeThreshold = ({
                   <Field
                     name={THRESHOLD_FIELD_NAME}
                     component={SelectField}
-                    validate={composeValidators(required, mustBeInteger, minValue(1))}
+                    validate={composeValidators(required, mustBeInteger, minValue(1), differentFrom(threshold))}
                     data-testid="threshold-select-input"
                   >
                     {[...Array(Number(owners.size))].map((x, index) => (
@@ -90,19 +91,19 @@ owner(s)
                   </Paragraph>
                 </Col>
               </Row>
-            </React.Fragment>
-          )}
-        </GnoForm>
-      </Block>
-      <Hairline style={{ position: 'absolute', bottom: 85 }} />
-      <Row align="center" className={classes.buttonRow}>
-        <Button className={classes.button} minWidth={140} onClick={onClose}>
-          BACK
-        </Button>
-        <Button color="primary" className={classes.button} minWidth={140} onClick={onClose} variant="contained">
-          CHANGE
-        </Button>
-      </Row>
+            </Block>
+            <Hairline style={{ position: 'absolute', bottom: 85 }} />
+            <Row align="center" className={classes.buttonRow}>
+              <Button className={classes.button} minWidth={140} onClick={onClose}>
+                BACK
+              </Button>
+              <Button type="submit" color="primary" className={classes.button} minWidth={140} variant="contained">
+                CHANGE
+              </Button>
+            </Row>
+          </React.Fragment>
+        )}
+      </GnoForm>
     </React.Fragment>
   )
 }
diff --git a/src/routes/safe/components/Settings/ThresholdSettings/index.jsx b/src/routes/safe/components/Settings/ThresholdSettings/index.jsx
index 3933ec2f..cb7307a1 100644
--- a/src/routes/safe/components/Settings/ThresholdSettings/index.jsx
+++ b/src/routes/safe/components/Settings/ThresholdSettings/index.jsx
@@ -2,6 +2,7 @@
 import React, { useState } from 'react'
 import { withStyles } from '@material-ui/core/styles'
 import { List } from 'immutable'
+import { SharedSnackbarConsumer } from '~/components/SharedSnackBar'
 import Heading from '~/components/layout/Heading'
 import Button from '~/components/layout/Button'
 import Bold from '~/components/layout/Bold'
@@ -32,56 +33,65 @@ const ThresholdSettings = ({
     setModalOpen(prevOpen => !prevOpen)
   }
 
-  const onChangeThreshold = async (newThreshold) => {
-    const safeInstance = await getGnosisSafeInstanceAt(safeAddress)
-    const data = safeInstance.contract.changeThreshold(newThreshold).encodeABI()
-
-    createTransaction(safeInstance, safeAddress, 0, ZERO_ADDRESS)
-  }
-
   return (
     <React.Fragment>
-      <Block className={classes.container}>
-        <Heading tag="h3">Required confirmations</Heading>
-        <Paragraph>
-          Any transaction over any daily limit
-          <br />
-          {' '}
-requires the confirmation of:
-        </Paragraph>
-        <Paragraph size="xxl" className={classes.ownersText}>
-          <Bold>{threshold}</Bold>
-          {' '}
-out of
-          <Bold>{owners.size}</Bold>
-          {' '}
-owners
-        </Paragraph>
-        <Row align="center" className={classes.buttonRow}>
-          <Button
-            color="primary"
-            minWidth={120}
-            className={classes.modifyBtn}
-            onClick={toggleModal}
-            variant="contained"
-          >
-            Modify
-          </Button>
-        </Row>
-      </Block>
-      <Modal
-        title="Change Required Confirmations"
-        description="Change Required Confirmations Form"
-        handleClose={toggleModal}
-        open={isModalOpen}
-      >
-        <ChangeThreshold
-          onClose={toggleModal}
-          owners={owners}
-          threshold={threshold}
-          onChangeThreshold={onChangeThreshold}
-        />
-      </Modal>
+      <SharedSnackbarConsumer>
+        {({ openSnackbar }) => {
+          const onChangeThreshold = async (newThreshold) => {
+            const safeInstance = await getGnosisSafeInstanceAt(safeAddress)
+            const txData = safeInstance.contract.methods.changeThreshold(newThreshold).encodeABI()
+
+            createTransaction(safeAddress, safeAddress, 0, txData, openSnackbar)
+          }
+
+          return (
+            <>
+              <Block className={classes.container}>
+                <Heading tag="h3">Required confirmations</Heading>
+                <Paragraph>
+                  Any transaction over any daily limit
+                  <br />
+                  {' '}
+                  requires the confirmation of:
+                </Paragraph>
+                <Paragraph size="xxl" className={classes.ownersText}>
+                  <Bold>{threshold}</Bold>
+                  {' '}
+                  out of
+                  {' '}
+                  <Bold>{owners.size}</Bold>
+                  {' '}
+                  owners
+                </Paragraph>
+                <Row align="center" className={classes.buttonRow}>
+                  <Button
+                    color="primary"
+                    minWidth={120}
+                    className={classes.modifyBtn}
+                    onClick={toggleModal}
+                    variant="contained"
+                  >
+                    Modify
+                  </Button>
+                </Row>
+              </Block>
+              <Modal
+                title="Change Required Confirmations"
+                description="Change Required Confirmations Form"
+                handleClose={toggleModal}
+                open={isModalOpen}
+              >
+                <ChangeThreshold
+                  onClose={toggleModal}
+                  owners={owners}
+                  threshold={threshold}
+                  onChangeThreshold={onChangeThreshold}
+                />
+              </Modal>
+            </>
+          )
+        }}
+      </SharedSnackbarConsumer>
     </React.Fragment>
   )
 }
diff --git a/src/routes/safe/store/actions/createTransaction.js b/src/routes/safe/store/actions/createTransaction.js
index 6ab785fa..c4b6ff99 100644
--- a/src/routes/safe/store/actions/createTransaction.js
+++ b/src/routes/safe/store/actions/createTransaction.js
@@ -25,7 +25,6 @@ const createTransaction = (
   const nonce = await safeInstance.nonce()
   const isExecution = threshold.toNumber() === 1
 
-
   let txHash
   if (isExecution) {
     openSnackbar('Transaction has been submitted', 'success')
diff --git a/yarn.lock b/yarn.lock
index 6da0beb8..7c295498 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1613,6 +1613,11 @@
   dependencies:
     uuid "^3.1.0"
 
+"@sheerun/mutationobserver-shim@^0.3.2":
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/@sheerun/mutationobserver-shim/-/mutationobserver-shim-0.3.2.tgz#8013f2af54a2b7d735f71560ff360d3a8176a87b"
+  integrity sha512-vTCdPp/T/Q3oSqwHmZ5Kpa9oI7iLtGl3RQaA/NyLHikvcrPxACkkKVr/XzkSPJWXHRhKGzVvb0urJsbMlRxi1Q==
+
 "@storybook/addon-actions@5.1.8":
   version "5.1.8"
   resolved "https://registry.yarnpkg.com/@storybook/addon-actions/-/addon-actions-5.1.8.tgz#98d6aff42fb7fa7477b4db6cf21da3ede18ede0d"
@@ -2081,6 +2086,25 @@
     "@svgr/plugin-svgo" "^4.2.0"
     loader-utils "^1.2.3"
 
+"@testing-library/dom@^5.0.0":
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/@testing-library/dom/-/dom-5.2.0.tgz#450bd09f93ddd8865eec98fc5e81fceb2bccdf9c"
+  integrity sha512-nFaZes/bzDfMqwZpQXdiPyj3WXU16FYf5k5NCFu/qJM4JdRJLHEtSRYtrETmk7nCf+qLVoHCqRduGi/4KE83Gw==
+  dependencies:
+    "@babel/runtime" "^7.4.5"
+    "@sheerun/mutationobserver-shim" "^0.3.2"
+    aria-query "3.0.0"
+    pretty-format "^24.8.0"
+    wait-for-expect "^1.2.0"
+
+"@testing-library/react@^8.0.1":
+  version "8.0.1"
+  resolved "https://registry.yarnpkg.com/@testing-library/react/-/react-8.0.1.tgz#91c254adf855b13de50020613cb5d3915f9f7875"
+  integrity sha512-N/1pJfhEnNYkGyxuw4xbp03evaS0z/CT8o0QgTfJqGlukAcU15xf9uU1w03NHKZJcU69nOCBAoAkXHtHzYwMbg==
+  dependencies:
+    "@babel/runtime" "^7.4.5"
+    "@testing-library/dom" "^5.0.0"
+
 "@types/babel__core@^7.1.0":
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/@types/babel__core/-/babel__core-7.1.2.tgz#608c74f55928033fce18b99b213c16be4b3d114f"
@@ -2729,7 +2753,7 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
-aria-query@^3.0.0:
+aria-query@3.0.0, aria-query@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/aria-query/-/aria-query-3.0.0.tgz#65b3fcc1ca1155a8c9ae64d6eee297f15d5133cc"
   integrity sha1-ZbP8wcoRVajJrmTW7uKX8V1RM8w=
@@ -16760,6 +16784,11 @@ w3c-hr-time@^1.0.1:
   dependencies:
     browser-process-hrtime "^0.1.2"
 
+wait-for-expect@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/wait-for-expect/-/wait-for-expect-1.2.0.tgz#fdab6a26e87d2039101db88bff3d8158e5c3e13f"
+  integrity sha512-EJhKpA+5UHixduMBEGhTFuLuVgQBKWxkFbefOdj2bbk2/OpA5Opsc4aUTGmF+qJ+v3kTGxDRNYwKaT4j6g5n8Q==
+
 walker@^1.0.7, walker@~1.0.5:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/walker/-/walker-1.0.7.tgz#2f7f9b8fd10d677262b18a884e28d19618e028fb"