diff --git a/tools/icu/icu_versions.json b/tools/icu/icu_versions.json
index e659b92ab47..e635d9b841a 100644
--- a/tools/icu/icu_versions.json
+++ b/tools/icu/icu_versions.json
@@ -1,3 +1,3 @@
 {
-    "minimum_icu": 71
+    "minimum_icu": 73
 }