diff --git a/lib/update_security_release.js b/lib/update_security_release.js
index ffe56df6..efa56618 100644
--- a/lib/update_security_release.js
+++ b/lib/update_security_release.js
@@ -268,17 +268,27 @@ Summary: ${summary}\n`,
   async calculateVersions(affectedVersions, supportedVersions) {
     const h1AffectedVersions = [];
     const patchedVersions = [];
+    let isPatchRelease = true;
     for (const affectedVersion of affectedVersions) {
-      const major = affectedVersion.split('.')[0];
-      const latest = supportedVersions.find((v) => v.major === Number(major)).version;
+      const affectedMajor = affectedVersion.split('.')[0];
+      const latest = supportedVersions.find((v) => v.major === Number(affectedMajor)).version;
       const version = await this.cli.prompt(
         `What is the affected version (<=) for release line ${affectedVersion}?`,
         { questionType: 'input', defaultAnswer: latest });
 
-      const nextPatchVersion = parseInt(version.split('.')[2]) + 1;
+      const [major, minor, patch] = version.split('.');
+      const nextPatchVersion = `${major}.${minor}.${parseInt(patch) + 1}`;
+      const nextMinorVersion = `${major}.${parseInt(minor) + 1}.0`;
       const patchedVersion = await this.cli.prompt(
         `What is the patched version (>=) for release line ${affectedVersion}?`,
-        { questionType: 'input', defaultAnswer: nextPatchVersion });
+        {
+          questionType: 'input',
+          defaultAnswer: isPatchRelease ? nextPatchVersion : nextMinorVersion
+        });
+
+      if (patchedVersion !== nextPatchVersion) {
+        isPatchRelease = false; // is a minor release
+      }
 
       patchedVersions.push(patchedVersion);
       h1AffectedVersions.push({