diff --git a/3rdparty/ext_icu/CMakeLists.txt b/3rdparty/ext_icu/CMakeLists.txt
index 61a0918c1..f92d32abf 100644
--- a/3rdparty/ext_icu/CMakeLists.txt
+++ b/3rdparty/ext_icu/CMakeLists.txt
@@ -1,10 +1,10 @@
 ExternalProject_Add(
   ext_icu
   DOWNLOAD_DIR ${EXT_DOWNLOAD_DIR}
-  URL http://download.icu-project.org/files/icu4c/63.1/icu4c-63_1-src.tgz
-  URL_MD5 9e40f6055294284df958200e308bce50
+  URL https://github.com/unicode-org/icu/releases/download/release-63-2/icu4c-63_2-src.tgz
+  URL_HASH SHA512=5fa9092efd8d6da6dfc8d498e4026167fda43423eaafc754d1789cf8fd4f6e76377878ebcaa32e14f314836136b764873511a93bfbcc5419b758841cc6df8f32
 
   CONFIGURE_COMMAND <SOURCE_DIR>/source/configure --prefix=${EXT_INSTALL_DIR} --disable-tests
   BUILD_COMMAND $(MAKE)
   INSTALL_COMMAND $(MAKE) install
 )