diff --git a/CHANGE_LOG b/CHANGE_LOG
index 8c74e460..d8b79534 100644
--- a/CHANGE_LOG
+++ b/CHANGE_LOG
@@ -1,3 +1,7 @@
+2021-XX-XX   2.1.3:
+-------------------
+
+
 2021-06-13   2.1.2:
 -------------------
   * support type hinting for all Python 3 versions (that bitarray supports,
diff --git a/bitarray/bitarray.h b/bitarray/bitarray.h
index a551e15c..1597d0f9 100644
--- a/bitarray/bitarray.h
+++ b/bitarray/bitarray.h
@@ -4,7 +4,7 @@
 
    Author: Ilan Schnell
 */
-#define BITARRAY_VERSION  "2.1.2"
+#define BITARRAY_VERSION  "2.1.3"
 
 #if PY_MAJOR_VERSION >= 3
 #define IS_PY3K