diff --git a/version_bump.sh b/version_bump.sh
index d6499d9..9d5cec9 100755
--- a/version_bump.sh
+++ b/version_bump.sh
@@ -6,17 +6,17 @@ cd "$parent_path" || exit
 if [ 1 -eq "$#" ]
 then
   echo "Version bump to $1"
-  sed --in-place --regexp-extended 's/"([0-9].[0-9].[0-9])"/"'"$1"'"/g' barker/barker/__version__.py
+  sed --in-place --regexp-extended 's/"([0-9]{1,2}.[0-9].[0-9])"/"'"$1"'"/g' barker/barker/__version__.py
   git add barker/barker/__version__.py
-  sed --in-place --regexp-extended 's/version = "([0-9].[0-9].[0-9])"/version = "'"$1"'"/g' barker/pyproject.toml
+  sed --in-place --regexp-extended 's/version = "([0-9]{1,2}.[0-9].[0-9])"/version = "'"$1"'"/g' barker/pyproject.toml
   git add barker/pyproject.toml
-  sed --in-place --regexp-extended 's/version = "([0-9].[0-9].[0-9])"/version = "'"$1"'"/g' frank/pyproject.toml
+  sed --in-place --regexp-extended 's/version = "([0-9]{1,2}.[0-9].[0-9])"/version = "'"$1"'"/g' frank/pyproject.toml
   git add frank/pyproject.toml
-  sed --in-place --regexp-extended 's/version: '\''([0-9].[0-9].[0-9])'\''/version: '\'"$1"\''/g' bookie/src/environments/environment.prod.ts
+  sed --in-place --regexp-extended 's/version: '\''([0-9]{1,2}.[0-9].[0-9])'\''/version: '\'"$1"\''/g' bookie/src/environments/environment.prod.ts
   git add bookie/src/environments/environment.prod.ts
-  sed --in-place --regexp-extended 's/version: '\''([0-9].[0-9].[0-9])'\''/version: '\'"$1"\''/g' bookie/src/environments/environment.ts
+  sed --in-place --regexp-extended 's/version: '\''([0-9]{1,2}.[0-9].[0-9])'\''/version: '\'"$1"\''/g' bookie/src/environments/environment.ts
   git add bookie/src/environments/environment.ts
-  sed --in-place --regexp-extended 's/"version": "([0-9].[0-9].[0-9])"/"version": "'"$1"'"/g' bookie/package.json
+  sed --in-place --regexp-extended 's/"version": "([0-9]{1,2}.[0-9].[0-9])"/"version": "'"$1"'"/g' bookie/package.json
   git add bookie/package.json
   git commit -m "Version Bump v$1"
   git tag "v$1"