diff --git a/clevyr-calver-plugin.js b/clevyr-calver-plugin.js
new file mode 100644
index 0000000..1ded88a
--- /dev/null
+++ b/clevyr-calver-plugin.js
@@ -0,0 +1,38 @@
+// # Originally pulled/modified from https://github.com/casmith/release-it-calver-plugin
+'use strict';
+
+const Plugin = require('release-it/lib/plugin/Plugin'),
+    calver = require('calver'),
+    DEFAULT_FORMAT = 'yy.mm.micro.dev',
+    DEFAULT_LEVEL = 'micro';
+
+class ClevyrCalverPlugin extends Plugin {
+    getFormat() {
+        return this.getContext().format || DEFAULT_FORMAT;
+    }
+
+    getIncrementedVersion({latestVersion}) {
+        calver.init(this.getFormat());
+        // TODO: This will currently cause the official release to start on version x.x.1 instead of x.x.0.
+        //       Should we fix? Doesn't look bad end-user.
+        const calverVersion = calver.inc(this.getFormat(), latestVersion, 'calendar');
+
+        const { preRelease } = this.config.options;
+        let level = DEFAULT_LEVEL;
+        if (preRelease) {
+            level = `calendar.${preRelease}`;
+        }
+
+        return calver.inc(this.getFormat(), calverVersion, level)
+    }
+
+    getIncrementedVersionCI() {
+        return this.getIncrementedVersion(...arguments);
+    }
+
+    getIncrement() {
+        return this.getIncrementedVersion(...arguments);
+    }
+}
+
+module.exports = ClevyrCalverPlugin;
\ No newline at end of file