diff --git a/cli/bump_version.py b/cli/bump_version.py
new file mode 100644
index 0000000..daed8a4
--- /dev/null
+++ b/cli/bump_version.py
@@ -0,0 +1,40 @@
+#!/usr/bin/python3
+"""Bump the version number in version.php by one.
+If the date part is not from today, set it to today and set part_number to 00
+"""
+
+import fileinput
+import sys
+import datetime
+import os
+import pathlib
+
+version_file = os.path.join(pathlib.Path(__file__).parent.resolve(), "..", 'version.php')
+
+if not os.path.exists(version_file):
+    print(f"version.php does not exist at {version_file}. Skipping.")
+    exit(1)
+
+for line in fileinput.input(version_file, inplace=True):
+    if line.startswith("$plugin->version"):
+        version = line.split("=")[1].strip()[:-1]
+
+        part_date = version[:8]
+        part_number = version[8:]
+
+        old_date = datetime.datetime.strptime(part_date, "%Y%m%d")
+        # check if this is today
+        if old_date.date() == datetime.date.today():
+            # increment part_number
+            part_number = str(int(part_number) + 1)
+            # to string with leading zeros
+            part_number = part_number.zfill(2)
+        else:
+            part_date = datetime.date.today().strftime("%Y%m%d")
+            part_number = "00"
+
+        print(f"$plugin->version = {part_date}{part_number};")
+    else:
+        print(line, end='')
+
+print(f"Version bumped for {version_file}.")