diff --git a/atom/blog.xml b/atom/blog.xml
index dc9fe63..ac9fa82 100644
--- a/atom/blog.xml
+++ b/atom/blog.xml
@@ -8,14 +8,13 @@
         <email>baruchel@sdf.org</email>
     </author>
     <rights>CC BY-SA 4.0</rights>
-    <updated>2022-11-05T14:42:25.792793+00:00Z</updated>
+    <updated>2022-11-05T14:46:26.151657Z</updated>
     <link href="https://git.sdf.org/baruchel/feeds/raw/branch/master/src/blog.rst" />
     <link href="https://git.sdf.org/baruchel/feeds/raw/branch/master/atom/blog.xml" rel="self" />
     <generator uri="https://git.sdf.org/baruchel/feeds/src/branch/master/rst2atom.py">rst2atom</generator>
 
     <entry>
         <title>Initial entry</title>
-        <id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
         <updated>2022-11-05T00:00:00Z</updated>
         <content type="xhtml">
             <div xmlns="http://www.w3.org/1999/xhtml"><div class="section" id="initial-entry">
diff --git a/rst2atom.py b/rst2atom.py
index b0f35a1..a96fb4f 100644
--- a/rst2atom.py
+++ b/rst2atom.py
@@ -78,7 +78,6 @@ def build_entry(d):
         pass
     print("""    <entry>
         <title>%s</title>
-        <id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
         <updated>%s</updated>
         <content type="xhtml">
             <div xmlns="http://www.w3.org/1999/xhtml">%s</div>
@@ -118,7 +117,7 @@ print("""<?xml version="1.0" encoding="utf-8"?>
          docinfos["Author:"],
          docinfos["Contact:"],
          meta["copyright"],
-         datetime.datetime.now(datetime.timezone.utc).isoformat() + "Z",
+         datetime.datetime.utcnow().isoformat() + "Z",
          meta["original-source"],
          meta["syndication-source"],
          generator_uri, generator_name