diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6108c343..0cc03615 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ set(PROJECT_NAME Tasks)
 set(PROJECT_DESCRIPTION "...")
 set(PROJECT_URL "https://github.com/jrl-umi3218/Tasks")
 set(PROJECT_DEBUG_POSTFIX "_d")
-set(PROJECT_VERSION 1.8.0)
+set(PROJECT_VERSION 1.8.1)
 set(PROJECT_USE_CMAKE_EXPORT TRUE)
 
 # Disable -Werror on Unix for now.
diff --git a/debian/changelog b/debian/changelog
index 0f4f0d1c..1673fe7f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+tasks (1.8.1-1debian1) unstable; urgency=medium
+
+  * Update upstream version
+
+ -- Pierre Gergondet <pierre.gergondet+ppa@gmail.com>  Mon, 13 Nov 2023 19:24:48 +0900
+
 tasks (1.8.0-1debian1) unstable; urgency=medium
 
   * Update upstream version