diff --git a/Cargo.lock b/Cargo.lock
index d937016..db7ba79 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -133,7 +133,7 @@ checksum = "030a733c8287d6213886dd487564ff5c8f6aae10278b3588ed177f9d18f8d231"
 dependencies = [
  "proc-macro2 1.0.10",
  "quote 1.0.3",
- "syn",
+ "syn 1.0.17",
  "synstructure",
 ]
 
@@ -205,7 +205,7 @@ dependencies = [
  "proc-macro-hack",
  "proc-macro2 1.0.10",
  "quote 1.0.3",
- "syn",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -317,6 +317,7 @@ dependencies = [
  "lazy_static",
  "mime_guess",
  "pulldown-cmark",
+ "rbtag",
  "serde",
  "serde_json",
  "wasm-bindgen",
@@ -355,7 +356,7 @@ dependencies = [
  "pest_meta",
  "proc-macro2 1.0.10",
  "quote 1.0.3",
- "syn",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -428,6 +429,26 @@ dependencies = [
  "proc-macro2 1.0.10",
 ]
 
+[[package]]
+name = "rbtag"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72c64936fcc0b811890a9d90020f3df5cec9c604efde88af7db6a35d365132a3"
+dependencies = [
+ "rbtag_derive",
+]
+
+[[package]]
+name = "rbtag_derive"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b75511b710ccca8adbb211e04763bd8c78fed585b0ec188a20ed9b0dd95567c4"
+dependencies = [
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+ "syn 0.15.44",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.1.56"
@@ -469,7 +490,7 @@ checksum = "9e549e3abf4fb8621bd1609f11dfc9f5e50320802273b12f3811a67e6716ea6c"
 dependencies = [
  "proc-macro2 1.0.10",
  "quote 1.0.3",
- "syn",
+ "syn 1.0.17",
 ]
 
 [[package]]
@@ -495,6 +516,17 @@ dependencies = [
  "opaque-debug",
 ]
 
+[[package]]
+name = "syn"
+version = "0.15.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ca4b3b69a77cbe1ffc9e198781b7acb0c7365a883670e8f1c1bc66fba79a5c5"
+dependencies = [
+ "proc-macro2 0.4.30",
+ "quote 0.6.13",
+ "unicode-xid 0.1.0",
+]
+
 [[package]]
 name = "syn"
 version = "1.0.17"
@@ -514,7 +546,7 @@ checksum = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 dependencies = [
  "proc-macro2 1.0.10",
  "quote 1.0.3",
- "syn",
+ "syn 1.0.17",
  "unicode-xid 0.2.0",
 ]
 
@@ -589,7 +621,7 @@ dependencies = [
  "log",
  "proc-macro2 1.0.10",
  "quote 1.0.3",
- "syn",
+ "syn 1.0.17",
  "wasm-bindgen-shared",
 ]
 
@@ -636,7 +668,7 @@ checksum = "d68a5b36eef1be7868f668632863292e37739656a80fc4b9acec7b0bd35a4931"
 dependencies = [
  "proc-macro2 1.0.10",
  "quote 1.0.3",
- "syn",
+ "syn 1.0.17",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index b93851b..191fd43 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,6 +20,7 @@ include_dir = "0.5"
 js-sys = "0.3"
 mime_guess = "2.0"
 pulldown-cmark = { version = "0.7", default-features = false }
+rbtag = "0.3"
 serde = { version = "1.0", features = [ "derive" ] }
 serde_json = "1.0"
 wasm-bindgen = "0.2"
diff --git a/src/render.rs b/src/render.rs
index 2adb777..ab20390 100644
--- a/src/render.rs
+++ b/src/render.rs
@@ -6,6 +6,7 @@ use chrono::NaiveDateTime;
 use handlebars::Handlebars;
 use include_dir::{include_dir, Dir};
 use js_sys::{Date, Uint8Array};
+use rbtag::BuildDateTime;
 use serde::Serialize;
 use std::vec::Vec;
 use web_sys::*;
@@ -71,6 +72,7 @@ lazy_static! {
 }
 
 handlebars_helper!(cur_year: |dummy: u64| Date::new_0().get_full_year());
+handlebars_helper!(build_num: |dummy: u64| BuildTag{}.get_build_timestamp());
 // TODO: actually implement this helper
 handlebars_helper!(format_date: |date: u64, format: str| {
     NaiveDateTime::from_timestamp(date as i64, 0).format(format).to_string()
@@ -81,6 +83,7 @@ fn build_handlebars() -> Handlebars<'static> {
 
     // Helpers
     hbs.register_helper("cur_year", Box::new(cur_year));
+    hbs.register_helper("build_num", Box::new(build_num));
     hbs.register_helper("format_date", Box::new(format_date));
 
     // Templates
diff --git a/src/utils.rs b/src/utils.rs
index 9fccd31..44c5705 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -1,6 +1,7 @@
 use cfg_if::cfg_if;
 use serde::Deserialize;
 use js_sys::*;
+use rbtag::BuildDateTime;
 use wasm_bindgen::prelude::*;
 use wasm_bindgen_futures::*;
 use web_sys::*;
@@ -153,4 +154,7 @@ pub struct Config {
     pub description: String,
     // Plugin identifier used for Standard Notes
     pub plugin_identifier: String
-}
\ No newline at end of file
+}
+
+#[derive(BuildDateTime)]
+pub struct BuildTag;
\ No newline at end of file
diff --git a/theme/default/home.hbs b/theme/default/home.hbs
index 3eede4c..17fa6ae 100644
--- a/theme/default/home.hbs
+++ b/theme/default/home.hbs
@@ -2,7 +2,7 @@
     <head>
         <meta charset="UTF-8">
         <title>{{ blog.title }}</title>
-        <link rel="stylesheet" href="/static/style.css?ver=20200410"/>
+        <link rel="stylesheet" href="/static/style.css?ver={{ build_num 0 }}"/>
     </head>
     <body>
         <div class="page-wrapper">
@@ -24,6 +24,6 @@
                 </div>
             </div>
         </div>
-        <script src="/static/script.js?ver=20200410"></script>
+        <script src="/static/script.js?ver={{ build_num 0 }}"></script>
     </body>
 </html>
\ No newline at end of file