diff --git a/icu-1618.patch b/icu-1618.patch
new file mode 100644
index 0000000..4dfbaaa
--- /dev/null
+++ b/icu-1618.patch
@@ -0,0 +1,43 @@
+From 7045a80e08a5f662b9588ad9f0b8a5c1cd558bce Mon Sep 17 00:00:00 2001
+From: Frank Tang <ftang@chromium.org>
+Date: Fri, 5 Mar 2021 02:29:58 +0000
+Subject: [PATCH] ICU-21521 Fix cast of uprv_strcmp
+
+See #1618
+[Update from guillaume: drop 1st hunk for backporting]
+---
+ source/common/locid.cpp | 18 +++++++++++++++---
+ 1 file changed, 15 insertions(+), 3 deletions(-)
+
+diff --git a/source/common/locid.cpp b/source/common/locid.cpp
+index 448c1de5e44..2d005b23542 100644
+--- a/source/common/locid.cpp
++++ b/source/common/locid.cpp
+@@ -1618,8 +1622,12 @@ AliasReplacer::outputToString(
+           out.append(SEP_CHAR, status);
+         }
+         variants.sort([](UElement e1, UElement e2) -> int8_t {
+-            return uprv_strcmp(
++            // uprv_strcmp return int and in some platform, such as arm64-v8a,
++            // it may return positive values > 127 which cause the casted value
++            // of int8_t negative.
++            int res = uprv_strcmp(
+                 (const char*)e1.pointer, (const char*)e2.pointer);
++            return (res == 0) ? 0 : ((res > 0) ? 1 : -1);
+         }, status);
+         int32_t variantsStart = out.length();
+         for (int32_t i = 0; i < variants.size(); i++) {
+@@ -1680,8 +1688,12 @@ AliasReplacer::replace(const Locale& locale, CharString& out, UErrorCode& status
+ 
+     // Sort the variants
+     variants.sort([](UElement e1, UElement e2) -> int8_t {
+-        return uprv_strcmp(
++        // uprv_strcmp return int and in some platform, such as arm64-v8a,
++        // it may return positive values > 127 which cause the casted value
++        // of int8_t negative.
++        int res = uprv_strcmp(
+             (const char*)e1.pointer, (const char*)e2.pointer);
++        return (res == 0) ? 0 : ((res > 0) ? 1 : -1);
+     }, status);
+ 
+     // A changed count to assert when loop too many times.
diff --git a/icu.changes b/icu.changes
index a8fce09..dd9c425 100644
--- a/icu.changes
+++ b/icu.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Mar  8 07:33:00 UTC 2021 - Guillaume GARDET <guillaume.gardet@opensuse.org>
+
+- Added icu-1618.patch to fix 2 tests on aarch64 [boo#1182645]
+
 -------------------------------------------------------------------
 Mon Mar  1 13:37:17 UTC 2021 - Martin Liška <mliska@suse.cz>
 
diff --git a/icu.spec b/icu.spec
index 85a5aee..55dccde 100644
--- a/icu.spec
+++ b/icu.spec
@@ -44,6 +44,7 @@ Patch4:         icu-fix-install-mode-files.diff
 Patch6:         icu-error-reporting.diff
 Patch7:         icu-avoid-x87-excess-precision.diff
 Patch8:         locale.diff
+Patch9:         icu-1618.patch
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
 BuildRequires:  pkg-config