diff --git a/geo/libosmium/Makefile b/geo/libosmium/Makefile
index cc8d41c1d86..bcd5abf2dc1 100644
--- a/geo/libosmium/Makefile
+++ b/geo/libosmium/Makefile
@@ -2,7 +2,7 @@ COMMENT =	fast, flexible library for working with OpenStreetMap data
 
 GH_ACCOUNT =	osmcode
 GH_PROJECT =	libosmium
-GH_TAGNAME =	v2.16.0
+GH_TAGNAME =	v2.18.0
 
 CATEGORIES =	geo
 
diff --git a/geo/libosmium/distinfo b/geo/libosmium/distinfo
index 52d1df8b0da..d0dffd75ae3 100644
--- a/geo/libosmium/distinfo
+++ b/geo/libosmium/distinfo
@@ -1,2 +1,2 @@
-SHA256 (libosmium-2.16.0.tar.gz) = QrvvlyJtfbfOPutHRgPlsfLw+GzshUmIaOlBbnzfW9U=
-SIZE (libosmium-2.16.0.tar.gz) = 508536
+SHA256 (libosmium-2.18.0.tar.gz) = wFo+lcnIEVIeuthjfpD0Orj7BTsxCHWsznQcxMF9b1k=
+SIZE (libosmium-2.18.0.tar.gz) = 565862
diff --git a/geo/libosmium/pkg/PLIST b/geo/libosmium/pkg/PLIST
index 7eb73048ee9..c101bdcc073 100644
--- a/geo/libosmium/pkg/PLIST
+++ b/geo/libosmium/pkg/PLIST
@@ -22,7 +22,6 @@ include/osmium/area/stats.hpp
 include/osmium/builder/
 include/osmium/builder/attr.hpp
 include/osmium/builder/builder.hpp
-include/osmium/builder/builder_helper.hpp
 include/osmium/builder/osm_object_builder.hpp
 include/osmium/diff_handler.hpp
 include/osmium/diff_iterator.hpp
@@ -77,7 +76,6 @@ include/osmium/index/map/flex_mem.hpp
 include/osmium/index/map/sparse_file_array.hpp
 include/osmium/index/map/sparse_mem_array.hpp
 include/osmium/index/map/sparse_mem_map.hpp
-include/osmium/index/map/sparse_mem_table.hpp
 include/osmium/index/map/sparse_mmap_array.hpp
 include/osmium/index/multimap/
 include/osmium/index/multimap.hpp
@@ -99,6 +97,7 @@ include/osmium/io/compression.hpp
 include/osmium/io/debug_output.hpp
 include/osmium/io/detail/
 include/osmium/io/detail/debug_output_format.hpp
+include/osmium/io/detail/ids_output_format.hpp
 include/osmium/io/detail/input_format.hpp
 include/osmium/io/detail/lz4.hpp
 include/osmium/io/detail/o5m_input_format.hpp
@@ -126,6 +125,7 @@ include/osmium/io/file_compression.hpp
 include/osmium/io/file_format.hpp
 include/osmium/io/gzip_compression.hpp
 include/osmium/io/header.hpp
+include/osmium/io/ids_output.hpp
 include/osmium/io/input_iterator.hpp
 include/osmium/io/o5m_input.hpp
 include/osmium/io/opl_input.hpp
@@ -199,7 +199,6 @@ include/osmium/thread/pool.hpp
 include/osmium/thread/queue.hpp
 include/osmium/thread/util.hpp
 include/osmium/util/
-include/osmium/util/cast.hpp
 include/osmium/util/compatibility.hpp
 include/osmium/util/config.hpp
 include/osmium/util/delta.hpp