diff --git a/CHANGELOG.md b/CHANGELOG.md
index fb89dd2723b62..b7e4548100df3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -57,6 +57,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Bump `dnsjava:dnsjava` from 3.6.0 to 3.6.1 ([#15418](https://github.com/opensearch-project/OpenSearch/pull/15418))
 - Bump `com.netflix.nebula.ospackage-base` from 11.9.1 to 11.10.0 ([#15419](https://github.com/opensearch-project/OpenSearch/pull/15419))
 - Bump `org.roaringbitmap:RoaringBitmap` from 1.1.0 to 1.2.1 ([#15423](https://github.com/opensearch-project/OpenSearch/pull/15423))
+- Bump `icu4j` from 70.1 to 75.1 ([#15469](https://github.com/opensearch-project/OpenSearch/pull/15469))
 
 ### Changed
 - Add lower limit for primary and replica batch allocators timeout ([#14979](https://github.com/opensearch-project/OpenSearch/pull/14979))
diff --git a/buildSrc/version.properties b/buildSrc/version.properties
index 98f474a7f0b90..0f066de481ea2 100644
--- a/buildSrc/version.properties
+++ b/buildSrc/version.properties
@@ -10,7 +10,7 @@ jts               = 1.15.0
 jackson           = 2.17.2
 jackson_databind  = 2.17.2
 snakeyaml         = 2.1
-icu4j             = 70.1
+icu4j             = 75.1
 supercsv          = 2.4.0
 log4j             = 2.21.0
 slf4j             = 1.7.36
diff --git a/plugins/analysis-icu/licenses/icu4j-70.1.jar.sha1 b/plugins/analysis-icu/licenses/icu4j-70.1.jar.sha1
deleted file mode 100644
index 6fad735235417..0000000000000
--- a/plugins/analysis-icu/licenses/icu4j-70.1.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-dfa3a1fbc55bf5db8c6e79fc0935ac7ab1202950
\ No newline at end of file
diff --git a/plugins/analysis-icu/licenses/icu4j-75.1.jar.sha1 b/plugins/analysis-icu/licenses/icu4j-75.1.jar.sha1
new file mode 100644
index 0000000000000..4ee1fbe23b117
--- /dev/null
+++ b/plugins/analysis-icu/licenses/icu4j-75.1.jar.sha1
@@ -0,0 +1 @@
+e8f8dcc2967f5ec2cfae185172293adfa5599b78
\ No newline at end of file