diff --git a/src/version/base.js b/src/version/base.js
index f26441f..dc341cb 100644
--- a/src/version/base.js
+++ b/src/version/base.js
@@ -9,6 +9,7 @@ module.exports = class BaseVersioning {
 
   newVersion = null
 
+  oldVersion = null
   /**
    * Set some basic configurations
    *
diff --git a/src/version/git.js b/src/version/git.js
index 40e95f9..4057434 100644
--- a/src/version/git.js
+++ b/src/version/git.js
@@ -12,12 +12,12 @@ module.exports = class Git extends BaseVersioning {
       const prerelease = core.getBooleanInput('pre-release')
 
       gitSemverTags({ tagPrefix, skipUnstable: !prerelease }, async (err, tags) => {
-        const currentVersion = tags.length > 0 ? tags.shift().replace(tagPrefix, '') : null
+        this.oldVersion = tags.length > 0 ? tags.shift().replace(tagPrefix, '') : null
 
         // Get the new version
         this.newVersion = await bumpVersion(
           releaseType,
-          currentVersion,
+          oldVersion,
         )
 
         // We are done
diff --git a/src/version/json.js b/src/version/json.js
index bc571c4..f083b67 100644
--- a/src/version/json.js
+++ b/src/version/json.js
@@ -30,12 +30,12 @@ module.exports = class Json extends BaseVersioning {
     }
 
     // Get the old version
-    const oldVersion = objectPath.get(jsonContent, this.versionPath, null)
+    this.oldVersion = objectPath.get(jsonContent, this.versionPath, null)
 
     // Get the new version
     this.newVersion = await bumpVersion(
       releaseType,
-      oldVersion,
+      this.oldVersion,
     )
 
     core.info(`Bumped file "${this.fileLocation}" from "${oldVersion}" to "${this.newVersion}"`)
diff --git a/src/version/toml.js b/src/version/toml.js
index 699be32..a40ffc6 100644
--- a/src/version/toml.js
+++ b/src/version/toml.js
@@ -17,16 +17,16 @@ module.exports = class Toml extends BaseVersioning {
     // Read the file
     const fileContent = this.read()
     const tomlContent = toml.parse(fileContent)
-    const oldVersion = objectPath.get(tomlContent, this.versionPath, null)
+    this.oldVersion = objectPath.get(tomlContent, this.versionPath, null)
 
     // Get the new version
     this.newVersion = await bumpVersion(
       releaseType,
-      oldVersion,
+      this.oldVersion,
     )
 
     // Update the file
-    if (oldVersion) {
+    if (this.oldVersion) {
       // Get the name of where the version is in
       const versionName = this.versionPath.split('.').pop()
 
@@ -35,7 +35,7 @@ module.exports = class Toml extends BaseVersioning {
       this.update(
         // We use replace instead of yaml.stringify so we can preserve white spaces and comments
         fileContent.replace(
-          `${versionName} = "${oldVersion}"`,
+          `${versionName} = "${this.oldVersion}"`,
           `${versionName} = "${this.newVersion}"`,
         ),
       )
diff --git a/src/version/yaml.js b/src/version/yaml.js
index 606c860..127f7ec 100644
--- a/src/version/yaml.js
+++ b/src/version/yaml.js
@@ -17,16 +17,16 @@ module.exports = class Yaml extends BaseVersioning {
     // Read the file
     const fileContent = this.read()
     const yamlContent = yaml.parse(fileContent) || {}
-    const oldVersion = objectPath.get(yamlContent, this.versionPath, null)
+    this.oldVersion = objectPath.get(yamlContent, this.versionPath, null)
 
     // Get the new version
     this.newVersion = await bumpVersion(
       releaseType,
-      oldVersion,
+      this.oldVersion,
     )
 
     // Update the file
-    if (oldVersion) {
+    if (this.oldVersion) {
       // Get the name of where the version is in
       const versionName = this.versionPath.split('.').pop()
 
@@ -36,13 +36,13 @@ module.exports = class Yaml extends BaseVersioning {
         // We use replace instead of yaml.stringify so we can preserve white spaces and comments
         // Replace if version was used with single quotes
         fileContent.replace(
-          `${versionName}: '${oldVersion}'`,
+          `${versionName}: '${this.oldVersion}'`,
           `${versionName}: '${this.newVersion}'`,
         ).replace( // Replace if version was used with double quotes
-          `${versionName}: "${oldVersion}"`,
+          `${versionName}: "${this.oldVersion}"`,
           `${versionName}: "${this.newVersion}"`,
         ).replace( // Replace if version was used with no quotes
-          `${versionName}: ${oldVersion}`,
+          `${versionName}: ${this.oldVersion}`,
           `${versionName}: ${this.newVersion}`,
         ),
       )