diff --git a/Makefile b/Makefile
index e5303b5..87499e2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 NAME=xmlpaste
-VERSION=1.1.1-dev
+VERSION=1.2.0-dev
 
 GOCMD=go
 GOBUILD=$(GOCMD) build
diff --git a/macOS/Distribution.xml b/macOS/Distribution.xml
index e7bdf76..054a82e 100644
--- a/macOS/Distribution.xml
+++ b/macOS/Distribution.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <installer-gui-script minSpecVersion="1">
-    <title>XMLPaste 1.1.1-dev</title>
+    <title>XMLPaste 1.2.0-dev</title>
     <welcome file="welcome.txt" />
     <license file="LICENSE.txt" />
     <pkg-ref id="jp.co.emic.xmlpaste"/>
@@ -14,5 +14,5 @@
     <choice id="jp.co.emic.xmlpaste" visible="false">
         <pkg-ref id="jp.co.emic.xmlpaste"/>
     </choice>
-    <pkg-ref id="jp.co.emic.xmlpaste" version="1.1.1" onConclusion="none">xmlpaste.pkg</pkg-ref>
+    <pkg-ref id="jp.co.emic.xmlpaste" version="1.2.0" onConclusion="none">xmlpaste.pkg</pkg-ref>
 </installer-gui-script>
\ No newline at end of file
diff --git a/release-notes.txt b/release-notes.txt
index 486c0e8..5577faf 100644
--- a/release-notes.txt
+++ b/release-notes.txt
@@ -2,7 +2,7 @@ XMLPaste
 (c) 2019-2024 Emic Corporation <https://www.emic.co.jp/>
 This software is distributed under the MIT License.
 
-Version: 1.1.1-dev (in development)
+Version: 1.2.0-dev (in development)
 - Add support for macOS Sequoia 15.
 - Built with Go 1.23.
 - [INFO] Drop support for macOS Monterey 12.
diff --git a/tests/goss.yaml b/tests/goss.yaml
index 9bb3777..608e26d 100644
--- a/tests/goss.yaml
+++ b/tests/goss.yaml
@@ -4,14 +4,14 @@ command:
     exec: "./xmlpaste -v"
     exit-status: 0
     stdout:
-      - "1.1.1-dev"
+      - "1.2.0-dev"
   {{end}}
 
   {{if eq .Env.OS "windows"}}
   print-version:
     exec: "xmlpaste.exe -v"
     exit-status: 0
-    stdout: "XMLPaste 1.1.1-dev\n"
+    stdout: "XMLPaste 1.2.0-dev\n"
   {{end}}
 
   {{if eq .Env.OS "darwin"}}