diff --git a/www/chromium/files/patch-build_linux_unbundle_icu.gn b/www/chromium/files/patch-build_linux_unbundle_icu.gn
new file mode 100644
--- /dev/null
+++ b/www/chromium/files/patch-build_linux_unbundle_icu.gn
@@ -0,0 +1,18 @@
+--- build/linux/unbundle/icu.gn.orig	2023-04-13 18:16:16 UTC
++++ build/linux/unbundle/icu.gn
+@@ -17,6 +17,15 @@ config("icu_config") {
+     "USING_SYSTEM_ICU=1",
+     "ICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC",
+ 
++    # As of icu 73 C++ nullptr, char16_t, override, final and noexcept are used
++    # instead of defines. These definitions can be removed when the bundled icu
++    # gets updated to 73. For more details, see:
++    # https://unicode-org.atlassian.net/browse/ICU-21833 and
++    # https://github.com/unicode-org/icu/commit/28643799377ecf654564f6f31854b02788cebe33
++    "U_FINAL=final",
++    "U_NOEXCEPT=noexcept",
++    "U_OVERRIDE=override",
++
+     # U_EXPORT (defined in unicode/platform.h) is used to set public visibility
+     # on classes through the U_COMMON_API and U_I18N_API macros (among others).
+     # When linking against the system ICU library, we want its symbols to have
diff --git a/www/iridium/files/patch-build_linux_unbundle_icu.gn b/www/iridium/files/patch-build_linux_unbundle_icu.gn
new file mode 100644
--- /dev/null
+++ b/www/iridium/files/patch-build_linux_unbundle_icu.gn
@@ -0,0 +1,18 @@
+--- build/linux/unbundle/icu.gn.orig	2023-04-13 18:16:16 UTC
++++ build/linux/unbundle/icu.gn
+@@ -17,6 +17,15 @@ config("icu_config") {
+     "USING_SYSTEM_ICU=1",
+     "ICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC",
+ 
++    # As of icu 73 C++ nullptr, char16_t, override, final and noexcept are used
++    # instead of defines. These definitions can be removed when the bundled icu
++    # gets updated to 73. For more details, see:
++    # https://unicode-org.atlassian.net/browse/ICU-21833 and
++    # https://github.com/unicode-org/icu/commit/28643799377ecf654564f6f31854b02788cebe33
++    "U_FINAL=final",
++    "U_NOEXCEPT=noexcept",
++    "U_OVERRIDE=override",
++
+     # U_EXPORT (defined in unicode/platform.h) is used to set public visibility
+     # on classes through the U_COMMON_API and U_I18N_API macros (among others).
+     # When linking against the system ICU library, we want its symbols to have
diff --git a/www/ungoogled-chromium/files/patch-build_linux_unbundle_icu.gn b/www/ungoogled-chromium/files/patch-build_linux_unbundle_icu.gn
new file mode 100644
--- /dev/null
+++ b/www/ungoogled-chromium/files/patch-build_linux_unbundle_icu.gn
@@ -0,0 +1,18 @@
+--- build/linux/unbundle/icu.gn.orig	2023-04-13 18:16:16 UTC
++++ build/linux/unbundle/icu.gn
+@@ -17,6 +17,15 @@ config("icu_config") {
+     "USING_SYSTEM_ICU=1",
+     "ICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_STATIC",
+ 
++    # As of icu 73 C++ nullptr, char16_t, override, final and noexcept are used
++    # instead of defines. These definitions can be removed when the bundled icu
++    # gets updated to 73. For more details, see:
++    # https://unicode-org.atlassian.net/browse/ICU-21833 and
++    # https://github.com/unicode-org/icu/commit/28643799377ecf654564f6f31854b02788cebe33
++    "U_FINAL=final",
++    "U_NOEXCEPT=noexcept",
++    "U_OVERRIDE=override",
++
+     # U_EXPORT (defined in unicode/platform.h) is used to set public visibility
+     # on classes through the U_COMMON_API and U_I18N_API macros (among others).
+     # When linking against the system ICU library, we want its symbols to have