1. **Open Instagram App**: Launch the Instagram app on your mobile device.
2. **Log In**: Enter your current username or email address and password to log in to your Instagram account.
3. **Go to Settings**: Once logged in, go to your profile by tapping on your profile picture at the bottom right corner.
4. **Access Account Settings**: Tap on the menu icon (three horizontal lines) at the top right corner of your profile to open the menu. Then, tap on "Settings" at the bottom of the menu.
5. **Go to Security**: In the Settings menu, scroll down and tap on "Security".
6. **Change Password**: Under the Security section, tap on "Password".
7. **Enter Current and New Password**: You will be prompted to enter your current password and then your new password twice. Make sure your new password is strong and unique.
8. **Save Changes**: After entering your new password twice, tap on "Save" to save the changes.
9. **Confirmation**: Instagram will show a confirmation message to let you know that your password has been successfully changed.
10. **Log In with New Password**: After changing your password, you will need to use your new password to log in to your Instagram account from now on.
Make sure to use a strong and unique password to protect your Instagram account from unauthorized access. Avoid using easily guessable passwords or reusing passwords from other accounts. Additionally, consider enabling two-factor authentication for an extra layer of security.