diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51b6720..20653a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ file is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and
 this project adheres to [Semantic
 Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Changed
+
+- Remove `post_body` field in `Http`
+
 ## [0.15.2+tis.0.0.1] - 2024-01-08
 
 ### Added
@@ -224,6 +230,7 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 - Move from giganto
 
+[Unreleased]: https://github.com/aicers/giganto-client/compare/0.15.2+tis.0.0.1...tis
 [0.15.2+tis.0.0.1]: https://github.com/aicers/giganto-client/compare/0.15.1...0.15.2+tis.0.0.1
 [0.15.2]: https://github.com/aicers/giganto-client/compare/0.15.1...0.15.2
 [0.15.1]: https://github.com/aicers/giganto-client/compare/0.15.0...0.15.1
diff --git a/README.md b/README.md
index ad99596..f246ca6 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ for data processing and high-speed data transfer.
 
 ## License
 
-Copyright 2022-2023 ClumL Inc.
+Copyright 2022-2023 ClumL, Inc.
 
 Licensed under [Apache License, Version 2.0][apache-license] (the "License");
 you may not use this crate except in compliance with the License.
diff --git a/src/ingest.rs b/src/ingest.rs
index 73b9967..b4742d9 100644
--- a/src/ingest.rs
+++ b/src/ingest.rs
@@ -195,7 +195,7 @@ mod tests {
         let nsec = 123;
         let ndt = NaiveDateTime::from_timestamp_opt(sec, nsec).unwrap();
 
-        let ts = ndt.timestamp_nanos();
+        let ts = ndt.timestamp_nanos_opt().unwrap();
         let ts_fmt = super::convert_time_format(ts);
         assert_eq!(ts_fmt, "2.000000123");
 
@@ -203,7 +203,7 @@ mod tests {
         let nsec = 0;
         let ndt = NaiveDateTime::from_timestamp_opt(sec, nsec).unwrap();
 
-        let ts = ndt.timestamp_nanos();
+        let ts = ndt.timestamp_nanos_opt().unwrap();
         let ts_fmt = super::convert_time_format(ts);
         assert_eq!(ts_fmt, "-1.000000000");
     }
diff --git a/src/ingest/network.rs b/src/ingest/network.rs
index 0baf71e..a8df419 100644
--- a/src/ingest/network.rs
+++ b/src/ingest/network.rs
@@ -238,14 +238,13 @@ pub struct Http {
     pub orig_mime_types: Vec<String>,
     pub resp_filenames: Vec<String>,
     pub resp_mime_types: Vec<String>,
-    pub post_body: Vec<u8>,
 }
 
 impl Display for Http {
     fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
         write!(
             f,
-            "{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}",
+            "{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}\t{}",
             self.orig_addr,
             self.orig_port,
             self.resp_addr,
@@ -272,11 +271,6 @@ impl Display for Http {
             vec_to_string_or_default(&self.orig_mime_types),
             vec_to_string_or_default(&self.resp_filenames),
             vec_to_string_or_default(&self.resp_mime_types),
-            if self.post_body.is_empty() {
-                String::from("-")
-            } else {
-                std::str::from_utf8(self.post_body.as_slice()).unwrap_or_default().replace('\t', " ")
-            }
         )
     }
 }
diff --git a/src/publish.rs b/src/publish.rs
index 3760e4f..336e0dc 100644
--- a/src/publish.rs
+++ b/src/publish.rs
@@ -700,7 +700,6 @@ mod tests {
             orig_mime_types: Vec::new(),
             resp_filenames: Vec::new(),
             resp_mime_types: Vec::new(),
-            post_body: Vec::new(),
         };
         let raw_event = bincode::serialize(&http).unwrap();
         let source = bincode::serialize(&"hello").unwrap();