diff --git a/CHANGELOG.md b/CHANGELOG.md
index f1917e2..d6ec160 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ Version History
 Version 4
 ---------
 
+### v4.1.1
+* improve consistency of results by changing date from str to dt.date in count_over_time
+
 ### v4.1.0
 * created new SearchAPI module to support updated search API
 
diff --git a/pyproject.toml b/pyproject.toml
index c82b2eb..0fe6a3d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "mediacloud"
-version = "4.1.0"
+version = "4.1.1"
 authors = [
     {name = "Rahul Bhargava", email = "r.bhargava@northeastern.edu"},
 ]