diff --git a/detools/version.py b/detools/version.py
index 1e79165..a262ca7 100644
--- a/detools/version.py
+++ b/detools/version.py
@@ -1 +1 @@
-__version__ = '0.43.0'
+__version__ = '0.44.0'
diff --git a/src/c/detools.h b/src/c/detools.h
index 71b8b9f..e8a7174 100644
--- a/src/c/detools.h
+++ b/src/c/detools.h
@@ -60,7 +60,7 @@
 #include <stdio.h>
 #include <stdbool.h>
 
-#define PBTOOLS_VERSION                  "0.43.0"
+#define PBTOOLS_VERSION                  "0.44.0"
 
 /* Error codes. */
 #define DETOOLS_OK                              0