diff --git a/SPECS/tzdata/tzdata.signatures.json b/SPECS/tzdata/tzdata.signatures.json
index e51cc8e0862..e34724d7988 100644
--- a/SPECS/tzdata/tzdata.signatures.json
+++ b/SPECS/tzdata/tzdata.signatures.json
@@ -1,5 +1,5 @@
 {
   "Signatures": {
-    "tzdata2024a.tar.gz": "0d0434459acbd2059a7a8da1f3304a84a86591f6ed69c6248fffa502b6edffe3"
+    "tzdata2024b.tar.gz": "70e754db126a8d0db3d16d6b4cb5f7ec1e04d5f261255e4558a67fe92d39e550"
   }
-}
\ No newline at end of file
+}
diff --git a/SPECS/tzdata/tzdata.spec b/SPECS/tzdata/tzdata.spec
index 2b701feb5bc..6faf52da270 100644
--- a/SPECS/tzdata/tzdata.spec
+++ b/SPECS/tzdata/tzdata.spec
@@ -1,6 +1,6 @@
 Summary:        Time zone data
 Name:           tzdata
-Version:        2024a
+Version:        2024b
 Release:        1%{?dist}
 License:        Public Domain
 Vendor:         Microsoft Corporation
@@ -45,6 +45,9 @@ ln -svf %{_datarootdir}/zoneinfo/UTC %{buildroot}%{_sysconfdir}/localtime
 %{_datadir}/*
 
 %changelog
+* Fri Sep 06 2024 CBL-Mariner Servicing Account <cblmargh@microsoft.com> - 2024b-1
+- Auto-upgrade to 2024b
+
 * Fri Feb 02 2024 CBL-Mariner Servicing Account <cblmargh@microsoft.com> - 2024a-1
 - Auto-upgrade to 2024a - upgrade to version 2024a
 
diff --git a/cgmanifest.json b/cgmanifest.json
index ccdd27f951c..41720506800 100644
--- a/cgmanifest.json
+++ b/cgmanifest.json
@@ -29057,8 +29057,8 @@
         "type": "other",
         "other": {
           "name": "tzdata",
-          "version": "2024a",
-          "downloadUrl": "https://data.iana.org/time-zones/releases/tzdata2024a.tar.gz"
+          "version": "2024b",
+          "downloadUrl": "https://data.iana.org/time-zones/releases/tzdata2024b.tar.gz"
         }
       }
     },