diff --git a/icu4j/build.properties b/icu4j/build.properties
index 5e6ab3b2514..ef7b9d88512 100644
--- a/icu4j/build.properties
+++ b/icu4j/build.properties
@@ -6,7 +6,7 @@
 #*******************************************************************************
 api.report.version = 70
 api.report.prev.version = 69
-release.file.ver = 70rc
+release.file.ver = 70_1
 api.doc.version = 70.1
-maven.pom.ver = 70.1-SNAPSHOT
+maven.pom.ver = 70.1
 
diff --git a/icu4j/main/shared/data/icudata.jar b/icu4j/main/shared/data/icudata.jar
index d9691aa08c2..7cda5b57c16 100644
--- a/icu4j/main/shared/data/icudata.jar
+++ b/icu4j/main/shared/data/icudata.jar
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:9a60e8eead3f049ca4c6f21983c05f172df6ed2f6d9e09603ed7d939435a32a1
-size 13627084
+oid sha256:708c473591db665d3f9b9aa321219885a86b5106e26ece98d2cf0a1aa816cffd
+size 13627094
diff --git a/icu4j/main/shared/data/icutzdata.jar b/icu4j/main/shared/data/icutzdata.jar
index ddde5fb10b2..15fd6ab79b4 100644
--- a/icu4j/main/shared/data/icutzdata.jar
+++ b/icu4j/main/shared/data/icutzdata.jar
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:5138343516d6c1d0cc079f0f2c77b8bde76373a20ace379bc56d054f4a12922e
-size 96360
+oid sha256:2c6618e94cf3c02a34113555937eb6c4417c867bc9f9cb03783dd2daef08e591
+size 96370
diff --git a/icu4j/main/shared/data/testdata.jar b/icu4j/main/shared/data/testdata.jar
index 6f776e18e0f..e2741832931 100644
--- a/icu4j/main/shared/data/testdata.jar
+++ b/icu4j/main/shared/data/testdata.jar
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ee3331f88ddca0a688515e392b913b2c3e4b040198489746e49f022943fe1239
-size 826063
+oid sha256:0888b8ed722fcd5bace2a0f3ce6fb2463bdd9686d97ee0b56effd3672b652fd4
+size 829042