diff --git a/README.md b/README.md
index b364e6b4..98b6f3e5 100644
--- a/README.md
+++ b/README.md
@@ -75,6 +75,7 @@ Documentation can be found at
 ----------
 Changelog:
 ----------
+    3.4.5 Fix crash when using the -k (keep-mismatch) flag, and fix rare hangs at end of processing
     3.4.4 Sort input bcf files to bcftools concat stage to ensure reproducibility.
     3.4.4 Add extra sort keys when generating pools to ensure stability of pool membership in the event of multiple contigs
           having the same size
diff --git a/gemBS/version.py b/gemBS/version.py
index 306c9ba5..728614e9 100644
--- a/gemBS/version.py
+++ b/gemBS/version.py
@@ -1,4 +1,4 @@
 __VERSION_MAJOR = "3"
 __VERSION_MINOR = "4"
-__VERSION_SUBMINOR = "4"
+__VERSION_SUBMINOR = "5"
 __VERSION__ = "%s.%s.%s" % (__VERSION_MAJOR, __VERSION_MINOR,__VERSION_SUBMINOR)
diff --git a/tools/bs_call b/tools/bs_call
index c6fd9d3d..273e6849 160000
--- a/tools/bs_call
+++ b/tools/bs_call
@@ -1 +1 @@
-Subproject commit c6fd9d3dd75cff4def78a88db96c3e66e0b94934
+Subproject commit 273e684950e343c5e33bb85ced4c609c10e22ec3