diff --git a/contrib/depends/packages/icu4c.mk b/contrib/depends/packages/icu4c.mk
index f74f20b..bd990e3 100644
--- a/contrib/depends/packages/icu4c.mk
+++ b/contrib/depends/packages/icu4c.mk
@@ -1,24 +1,23 @@
 package=icu4c
-$(package)_version=55.2
-$(package)_download_path=https://github.com/unicode-org/icu/releases/download/release-55-2/
-$(package)_file_name=$(package)-55_2-src.tgz
-$(package)_sha256_hash=eda2aa9f9c787748a2e2d310590720ca8bcc6252adf6b4cfb03b65bef9d66759
-$(package)_patches=icu-001-dont-build-static-dynamic-twice.patch no-timestamp-in-makefile.patch
+$(package)_version=73.1
+$(package)_download_path=https://github.com/unicode-org/icu/releases/download/release-73-1/
+$(package)_file_name=$(package)-73_1-src.tgz
+$(package)_sha256_hash=a457431de164b4aa7eca00ed134d00dfbf88a77c6986a10ae7774fc076bb8c45
+$(package)_patches=icu-001-dont-build-static-dynamic-twice.patch
 
 define $(package)_set_vars
-  $(package)_build_opts=CFLAGS="$($(package)_cflags) $($(package)_cppflags) -DU_USING_ICU_NAMESPACE=0 -DU_STATIC_IMPLEMENTATION -DU_COMBINED_IMPLEMENTATION -fPIC -DENABLE_STATIC=YES -DPGKDATA_MODE=static"
+  $(package)_build_opts=CFLAGS="$($(package)_cflags) $($(package)_cppflags) -DU_USING_ICU_NAMESPACE=0 -DU_STATIC_IMPLEMENTATION -fPIC -DENABLE_STATIC=YES -DPGKDATA_MODE=static"
 endef
 
 define $(package)_config_cmds
   patch -p1 < $($(package)_patch_dir)/icu-001-dont-build-static-dynamic-twice.patch && \
-  patch -p1 < $($(package)_patch_dir)/no-timestamp-in-makefile.patch && \
   mkdir builda &&\
   mkdir buildb &&\
   cd builda &&\
   sh ../source/runConfigureICU Linux &&\
   make &&\
   cd ../buildb &&\
-  sh ../source/runConfigureICU MinGW --enable-static=yes --disable-shared --disable-layout --disable-layoutex --disable-tests --disable-samples --prefix=$(host_prefix) --with-cross-build=`pwd`/../builda &&\
+  sh ../source/runConfigureICU MinGW --enable-static=yes --disable-shared --disable-layout --disable-layoutex --disable-tests --disable-tools --disable-samples --prefix=$(host_prefix) --with-cross-build=`pwd`/../builda &&\
   $(MAKE) $($(package)_build_opts)
 endef
 
diff --git a/contrib/depends/patches/icu4c/no-timestamp-in-makefile.patch b/contrib/depends/patches/icu4c/no-timestamp-in-makefile.patch
deleted file mode 100644
index c439632..0000000
--- a/contrib/depends/patches/icu4c/no-timestamp-in-makefile.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff --git a/source/Makefile.in b/source/Makefile.in
-index 9db6c52..b5a4ea3 100644
---- a/source/Makefile.in
-+++ b/source/Makefile.in
-@@ -335,7 +335,6 @@ $(top_builddir)/config/icu-config: $(top_builddir)/Makefile $(top_srcdir)/config
- 	LC_ALL=C sed -f $(top_srcdir)/config/make2sh.sed < $(top_builddir)/config/Makefile.inc | grep -v '#M#' | uniq >> $@
- 	LC_ALL=C sed -f $(top_srcdir)/config/make2sh.sed < @platform_make_fragment@ | grep -v '#M#' | uniq >> $@
- 	cat $(top_srcdir)/config/icu-config-bottom >> $@
--	echo "# Rebuilt on "`date` >> $@
- 	chmod u-w $@
- 
- config.status: $(srcdir)/configure $(srcdir)/common/unicode/uvernum.h