diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 93515d8..9da7598 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -14,12 +14,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "Concurrent Systems/notes/3a - Hardware primitives & Lamport Bakery algorithm.md",
+                "file": "Concurrent Systems/notes/1b - Peterson algorithm.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "3a - Hardware primitives & Lamport Bakery algorithm"
+              "title": "1b - Peterson algorithm"
             }
           },
           {
@@ -207,9 +207,9 @@
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-    "Concurrent Systems/notes/3a - Hardware primitives & Lamport Bakery algorithm.md",
     "Concurrent Systems/notes/2 - Fast mutex by Lamport.md",
+    "Concurrent Systems/notes/3a - Hardware primitives & Lamport Bakery algorithm.md",
+    "Concurrent Systems/notes/3b - Aravind's algorithm and improvements.md",
     "Concurrent Systems/notes/1b - Peterson algorithm.md",
     "Concurrent Systems/notes/7- MUTEX-free concurrency.md",
     "Concurrent Systems/notes/9 - Consensus.md",