diff --git a/deps/icu-small/source/data/in/icudt78l.dat.bz2 b/deps/icu-small/source/data/in/icudt78l.dat.bz2
index 21ca4cef1c2acd..100dcc6f6776a9 100644
Binary files a/deps/icu-small/source/data/in/icudt78l.dat.bz2 and b/deps/icu-small/source/data/in/icudt78l.dat.bz2 differ
diff --git a/test/fixtures/tz-version.txt b/test/fixtures/tz-version.txt
index 5d9126009e7f87..75d34ee389315f 100644
--- a/test/fixtures/tz-version.txt
+++ b/test/fixtures/tz-version.txt
@@ -1 +1 @@
-2026a
+2026b