diff --git a/_data/mentors.yml b/_data/mentors.yml
index 39ecf628..cffcf847 100644
--- a/_data/mentors.yml
+++ b/_data/mentors.yml
@@ -743,7 +743,7 @@
 
 - name: Sakirat Kehinde Usman
   disabled: false
-  sort: 100
+  sort: 10
   num_mentee: 1
   hours: 5
   position: Frontend Development Trainer, Niyo Group Ltd
@@ -754,7 +754,7 @@
     I am a frontend engineer with over 3 years of experience in frontend development. I am excellent at building user interfaces and bringing web functionalities to life. I have worked on various projects ranging from fintech to agriculture.
   image: assets/images/mentors/sakirat_kehinde_usman.jpg
   languages: English
-  availability: [11]
+  availability: []
   skills:
     experience: 4-5 years
     years: 5
@@ -1240,7 +1240,7 @@
 - name: Busra Ecem Sakar
   disabled: false
   matched: false
-  sort: 200
+  sort: 100
   num_mentee: 2
   hours: 4
   type: both
@@ -1252,7 +1252,7 @@
     Biostatistics and Big Data & Data Science Technology. I am an expert in A/B testing, data analysis, statistical modelling, and machine learning, as well as SQL, Python, R, and other tools. My passion is using data to make important business decisions.
   image: "assets/images/mentors/busra_sakar.jpg"
   languages: English, Turkish
-  availability: [5, 6, 7, 8, 9, 10, 11]
+  availability: [5, 6, 8, 9, 10, 11]
   skills:
     experience: 7-10 Years
     years: 10
@@ -2204,7 +2204,7 @@
 - name: Sergei Begishev
   disabled: false
   matched: false
-  sort: 200
+  sort: 100
   num_mentee: 1
   hours: 4
   bio: |
@@ -2215,7 +2215,7 @@
   type: both
   index: 65
   languages: English, Russian
-  availability: [5, 6, 7, 8, 9, 10, 11]
+  availability: [5, 6, 8, 9, 10, 11]
   skills:
     experience: 5-7 Years
     years: 7