diff --git a/README.md b/README.md
index 85387b1..598853d 100644
--- a/README.md
+++ b/README.md
@@ -92,6 +92,11 @@ To update the version follow the following steps (the old version is here 15.0.1
 
  16. Create new pull request
 
+### Automatically do steps 2 to 12
+
+Run `./update-new-version.sh "$new-version"`
+
+Where `$new-version` is in the format `[year].[major].[minor]`.
 
 ### Setting up the build environment
 
diff --git a/update-new-version.sh b/update-new-version.sh
index be11bcd..1a030ca 100755
--- a/update-new-version.sh
+++ b/update-new-version.sh
@@ -6,8 +6,9 @@ PACKAGE="intellij-idea-ultimate"
 DISTRIBUTION="disco"
 
 main() {
-    old="$1"
-    new="$2"
+    last_tag=$(git describe --abbrev=0 --tags)
+    old="${last_tag#?}"
+    new="$1"
     name="$(git config --get user.name)"
     email="$(git config --get user.email)"
 
@@ -36,4 +37,4 @@ main() {
     # sudo dpkg -i "$PACKAGE"_"$new"-1_all.deb
 }
 
-main "$1" "$2"
+main "$1"