diff --git a/CMakeLists.txt b/CMakeLists.txt
index add06e7..0388a11 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ set(PROJECT_NAME eigen-quadprog)
 set(PROJECT_DESCRIPTION "QuadProg QP solver through Eigen3 library.")
 set(PROJECT_URL "https://github.com/jrl-umi3218/eigen-quadprog")
 set(PROJECT_DEBUG_POSTFIX "_d")
-set(PROJECT_VERSION 1.1.0)
+set(PROJECT_VERSION 1.1.1)
 set(PROJECT_USE_CMAKE_EXPORT TRUE)
 
 set(DOXYGEN_USE_MATHJAX "YES")
diff --git a/conanfile.py b/conanfile.py
index 171fabd..5451425 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -10,7 +10,7 @@
 
 class EigenQuadProgConan(base.Eigen3ToPythonConan):
     name = "eigen-quadprog"
-    version = "1.1.0"
+    version = "1.1.1"
     description = "QuadProg QP solver through Eigen3 library"
     topics = ("robotics", "optimization", "qp", "python")
     url = "https://github.com/jrl-umi3218/eigen-quadprog"
diff --git a/debian/changelog b/debian/changelog
index f272612..785d5dd 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+eigen-quadprog (1.1.1-1ubuntu1) unstable; urgency=medium
+
+  * Update upstream version
+
+ -- Pierre Gergondet <pierre.gergondet+ppa@gmail.com>  Thu, 11 Mar 2021 10:25:22 +0800
+
 eigen-quadprog (1.1.0-1ubuntu1) unstable; urgency=medium
 
   * Bump upstream version