diff --git a/system/base/timezone/pspec.xml b/system/base/timezone/pspec.xml
index b8b0c04d..1bad3364 100644
--- a/system/base/timezone/pspec.xml
+++ b/system/base/timezone/pspec.xml
@@ -14,7 +14,7 @@
         <IsA>data</IsA>
         <Summary>Timezone data files and tools</Summary>
         <Description>timezone includes timezone data files and tools to use them. Package contents are synchronized with glibc tree.</Description>
-        <Archive sha1sum="e5b9eeb4388c91e462447cafb342d6584243f546" type="targz">https://data.iana.org/time-zones/releases/tzdata2025a.tar.gz</Archive>
+        <Archive sha1sum="619f59455fc146b9882a03fb9db2b7a044b5fcd6" type="targz">https://data.iana.org/time-zones/releases/tzdata2025b.tar.gz</Archive>
         <BuildDependencies>
             <Dependency>perl</Dependency>
             <Dependency>gawk</Dependency>
@@ -36,6 +36,13 @@
     </Package>
 
     <History>
+        <Update release="12">
+            <Date>2025-04-05</Date>
+            <Version>2025b</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Pisi Linux Community</Name>
+            <Email>admin@pisilinux.org</Email>
+        </Update>
         <Update release="11">
             <Date>2025-01-18</Date>
             <Version>2025a</Version>