diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 4a97294e5..7be416bbd 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.1.3
+current_version = 1.1.5
 commit = True
 tag = True
 tag_name = v{new_version}
diff --git a/fealpy/__init__.py b/fealpy/__init__.py
index 1022ba233..85fa6c479 100644
--- a/fealpy/__init__.py
+++ b/fealpy/__init__.py
@@ -2,4 +2,4 @@
 ====
 """
 
-__version__ = "1.1.3"
+__version__ = "1.1.5"