diff --git a/deps/icu-small/source/data/in/icudt77l.dat.bz2 b/deps/icu-small/source/data/in/icudt77l.dat.bz2
index 336984fcd0..1f298a4c2a 100644
Binary files a/deps/icu-small/source/data/in/icudt77l.dat.bz2 and b/deps/icu-small/source/data/in/icudt77l.dat.bz2 differ
diff --git a/test/fixtures/tz-version.txt b/test/fixtures/tz-version.txt
index 0846b7f265..ef468adcec 100644
--- a/test/fixtures/tz-version.txt
+++ b/test/fixtures/tz-version.txt
@@ -1 +1 @@
-2025a
+2025b