diff --git a/src/ChangeLog b/src/ChangeLog
index 2640b76b..7104f1c0 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,6 +1,8 @@
 [2.1.10]
 - Fixed a bug that could cause a crash when using a bi-directional coverage
   cutoff in query-indexed mode.
+- Fixed a bug that caused the `--include-lineage` option to malfunction for
+  targets with no taxonomic assignment available.
 
 [2.1.9]
 - Corrected the prefix of the query length field for the SAM format.
diff --git a/src/basic/basic.cpp b/src/basic/basic.cpp
index cf8c790a..5c68807c 100644
--- a/src/basic/basic.cpp
+++ b/src/basic/basic.cpp
@@ -29,7 +29,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "../util/util.h"
 #include "../stats/standard_matrix.h"
 
-const char* Const::version_string = "2.1.9";
+const char* Const::version_string = "2.1.10";
 using std::string;
 using std::vector;
 using std::count;
diff --git a/src/basic/const.h b/src/basic/const.h
index c6d22171..b8131845 100644
--- a/src/basic/const.h
+++ b/src/basic/const.h
@@ -25,7 +25,7 @@ struct Const
 {
 
 	enum {
-		build_version = 163,
+		build_version = 164,
 #ifdef SINGLE_THREADED
 		seedp_bits = 0,
 #else
diff --git a/src/test/test_cases.cpp b/src/test/test_cases.cpp
index 362e83c0..38ae140d 100644
--- a/src/test/test_cases.cpp
+++ b/src/test/test_cases.cpp
@@ -66,8 +66,8 @@ const vector<uint64_t> ref_hashes = {
 0xe787dcb23cc5b120,
 0x5aa4baf48a888be9,
 0xa2519e06e3bfa2fd,
-0x908a59d941ba8497,
-0x67b3a14cdd541dc3
+0x2b827bdfa26faa1,
+0x67b3a14cdd541dc3,
 };
 
 }
\ No newline at end of file