diff --git a/update_projects.py b/update_projects.py
new file mode 100644
index 0000000..9661844
--- /dev/null
+++ b/update_projects.py
@@ -0,0 +1,58 @@
+import os
+import json
+import requests
+from datetime import datetime
+
+# GitHub API base URL
+BASE_URL = "https://api.github.com/repos/"
+
+# Function to get the default branch name for a GitHub repository
+def get_default_branch(repo):
+    try:
+        url = f"{BASE_URL}{repo}"
+        response = requests.get(url)
+        response.raise_for_status()
+        repo_data = response.json()
+        default_branch = repo_data["default_branch"]
+        return default_branch
+    except Exception as e:
+        print(f"Error fetching default branch for {repo}: {str(e)}")
+        return None
+
+# Function to get the timestamp of the last commit date for a GitHub repository
+def get_last_commit_timestamp(repo):
+    default_branch = get_default_branch(repo)
+    if default_branch:
+        try:
+            url = f"{BASE_URL}{repo}/commits/{default_branch}"
+            response = requests.get(url)
+            response.raise_for_status()
+            commit_data = response.json()
+            last_commit_date = commit_data["commit"]["committer"]["date"]
+            # Convert last_commit_date to Unix timestamp
+            timestamp = datetime.strptime(last_commit_date, '%Y-%m-%dT%H:%M:%SZ').timestamp()
+            return int(timestamp)
+        except Exception as e:
+            print(f"Error fetching last commit date for {repo}: {str(e)}")
+    return None
+
+# Path to the projects.json file
+projects_json_path = os.path.expanduser("~/GitHub/jonasjones.dev/src/routes/projects/projects.json")
+
+# Load the existing projects.json file
+with open(projects_json_path, "r") as file:
+    projects_data = json.load(file)
+
+# Update the last_update (Unix timestamp) for each project
+for project in projects_data:
+    gh_api = project.get("gh_api")
+    if gh_api:
+        last_commit_timestamp = get_last_commit_timestamp(gh_api)
+        if last_commit_timestamp:
+            project["last_update"] = last_commit_timestamp
+
+# Save the updated data back to the projects.json file
+with open(projects_json_path, "w") as file:
+    json.dump(projects_data, file, indent=2)
+
+print("Updated projects.json with last_update (Unix timestamp) information.")