diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 97eebb9d..5085beb1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -954,7 +954,7 @@ jobs:
         uses: ./
         env:
           ENV: "dont-use-git"
-          EXPECTED_TAG: "v1.4.6-rc.0"
+          EXPECTED_TAG: "v1.5.0-rc.0"
         with:
           github-token: ${{ secrets.github_token }}
           version-file: "test-file.json"
@@ -968,7 +968,7 @@ jobs:
         run: node ./test-output.js
         env:
           FILES: "test-file.json"
-          EXPECTED_VERSION: "1.4.6-rc.0"
+          EXPECTED_VERSION: "1.5.0-rc.0"
 
   test-pre-release-identifier:
     runs-on: ubuntu-latest
@@ -990,7 +990,7 @@ jobs:
         uses: ./
         env:
           ENV: "dont-use-git"
-          EXPECTED_TAG: "v1.4.6-alpha.0"
+          EXPECTED_TAG: "v1.5.0-alpha.0"
         with:
           github-token: ${{ secrets.github_token }}
           version-file: "test-file.json"
@@ -1005,7 +1005,7 @@ jobs:
         run: node ./test-output.js
         env:
           FILES: "test-file.json"
-          EXPECTED_VERSION: "1.4.6-alpha.0"
+          EXPECTED_VERSION: "1.5.0-alpha.0"
 
   test-pre-release-to-stable:
     runs-on: ubuntu-latest
diff --git a/src/helpers/bumpVersion.js b/src/helpers/bumpVersion.js
index c3104912..c1509e41 100644
--- a/src/helpers/bumpVersion.js
+++ b/src/helpers/bumpVersion.js
@@ -17,7 +17,7 @@ module.exports = async (releaseType, version) => {
   const identifier = core.getInput('pre-release-identifier')
 
   if (version) {
-    newVersion = semver.inc(version, (prerelease ? 'prerelease' : releaseType), identifier)
+    newVersion = semver.inc(version, (prerelease ? `pre${releaseType}` : releaseType), identifier)
   } else {
 
     const fallbackVersion = core.getInput('fallback-version')