Your credit score is affected by the accounts and credit history that are included in your credit report.
If the information in your report hasn't changed much, your credit score may not change either.
Remember, building up your credit score takes time and you may not always get to see a satisfying boost month on month.
Even if there has been a small change to your report, this might not be enough to have an impact on your score.
It's helpful to check through the 'What has changed' and 'Factors on your report' sections on your credit report overview to see the aspects which may be affecting your score.
It might also be worth checking out our Learn article which talks about the factors that affect your credit score.