diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 4f8d0fa..b823196 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -17,7 +17,7 @@ are used for versioning (schema follows below):
 
 1.9
 -----
-2021-08-17
+2021-08-18
 
 - Add `value_dumper` to most of the functions/methods related to signature
   generation/validation. It's aimed to make signatures generated in languages
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 4f8d0fa..b823196 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -17,7 +17,7 @@ are used for versioning (schema follows below):
 
 1.9
 -----
-2021-08-17
+2021-08-18
 
 - Add `value_dumper` to most of the functions/methods related to signature
   generation/validation. It's aimed to make signatures generated in languages