diff --git a/Cargo.lock b/Cargo.lock
index fb47390..9eed12e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -281,9 +281,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.12.0"
+version = "3.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535"
+checksum = "9b1ce199063694f33ffb7dd4e0ee620741495c32833cde5aa08f02a0bf96f0c8"
 
 [[package]]
 name = "byteorder"
@@ -1022,9 +1022,9 @@ checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.3.3"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b085a4f2cde5781fc4b1717f2e86c62f5cda49de7ba99a7c2eae02b61c9064c"
+checksum = "36eb31c1778188ae1e64398743890d0877fef36d11521ac60406b42016e8c2cf"
 
 [[package]]
 name = "lock_api"
@@ -1293,9 +1293,9 @@ dependencies = [
 
 [[package]]
 name = "ordered-float"
-version = "3.6.0"
+version = "3.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13a384337e997e6860ffbaa83708b2ef329fd8c54cb67a5f64d421e0f943254f"
+checksum = "2fc2dbde8f8a79f2102cc474ceb0ad68e3b80b85289ea62389b60e66777e4213"
 dependencies = [
  "num-traits",
 ]
@@ -1589,9 +1589,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.8.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac6cf59af1067a3fb53fbe5c88c053764e930f932be1d71d3ffe032cbe147f59"
+checksum = "af83e617f331cc6ae2da5443c602dfa5af81e517212d9d611a5b3ba1777b5370"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1600,9 +1600,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.7.0"
+version = "0.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6868896879ba532248f33598de5181522d8b3d9d724dfd230911e1a7d4822f5"
+checksum = "a5996294f19bd3aae0453a862ad728f60e6600695733dd5df01da90c54363a3c"
 
 [[package]]
 name = "rmp"
@@ -1643,9 +1643,9 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.37.13"
+version = "0.37.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f79bef90eb6d984c72722595b5b1348ab39275a5e5123faca6863bf07d75a4e0"
+checksum = "d9b864d3c18a5785a05953adeed93e2dca37ed30f18e69bba9f30079d51f363f"
 dependencies = [
  "bitflags",
  "errno",
@@ -2006,7 +2006,7 @@ dependencies = [
  "nix 0.24.3",
  "num-derive",
  "num-traits",
- "ordered-float 3.6.0",
+ "ordered-float 3.7.0",
  "pest",
  "pest_derive",
  "phf 0.10.1",
@@ -2377,7 +2377,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a75e78c0cc60a76de5d93f9dad05651105351e151b6446ab305514945d7588aa"
 dependencies = [
  "log",
- "ordered-float 3.6.0",
+ "ordered-float 3.7.0",
  "strsim",
  "thiserror",
  "wezterm-dynamic-derive",
@@ -2577,7 +2577,7 @@ dependencies = [
 
 [[package]]
 name = "zellij-datetime"
-version = "0.4.2"
+version = "0.5.0"
 dependencies = [
  "ansi_term",
  "chrono-wasi",
diff --git a/Cargo.toml b/Cargo.toml
index 7fcfb03..8dc411b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "zellij-datetime"
-version = "0.4.2"
+version = "0.5.0"
 authors = ["h1romas4 <h1romas4@gmail.com>"]
 edition = "2021"
 
 [dependencies]
-zellij-tile = "^0.36.0"
-zellij-tile-utils = "0.36.0"
-ansi_term = "0.12"
-chrono-wasi = "0.4.11"
+zellij-tile = "^0.36"
+zellij-tile-utils = "^0.36"
+ansi_term = "^0.12"
+chrono-wasi = "^0.4"
diff --git a/README.md b/README.md
index 00b5b7f..c7673fe 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ zellij setup --dump-layout default > ~/.config/zellij/layouts/default.kdl
 # deploy plugin .wasm
 cd ~/.config/zellij/plugins/
 # download datetime plugin
-wget https://github.com/h1romas4/zellij-datetime/releases/download/v0.4.2/zellij-datetime.wasm
+wget https://github.com/h1romas4/zellij-datetime/releases/download/v0.5.0/zellij-datetime.wasm
 ```
 
 ## Usage
diff --git a/src/main.rs b/src/main.rs
index 63cc5cb..d4c1723 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,7 +4,7 @@ use zellij_tile_utils::style;
 
 // FIXME: UTC+9
 static TIMEZONE_OFFSET: i32 = 9;
-// Dark gray
+// FIXME: DateTime backgorund color
 static DATETIME_BG_COLOR: (u8, u8, u8) = (32, 32, 32);
 
 static ARROW_SEPARATOR_1: &str = "";
@@ -33,11 +33,7 @@ register_plugin!(State);
 impl ZellijPlugin for State {
     fn load(&mut self) {
         set_selectable(false);
-        subscribe(&[
-            EventType::Timer,
-            EventType::Visible,
-            EventType::ModeUpdate,
-        ]);
+        subscribe(&[EventType::Timer, EventType::Visible, EventType::ModeUpdate]);
         self.before_now = u32::MAX;
     }
 
@@ -55,8 +51,7 @@ impl ZellijPlugin for State {
                 // TODO: suport timezone or add plugin setting
                 // Timezone may not be obtained by WASI.
                 // let now = Local::now();
-                let now = Utc::now()
-                    .with_timezone(&FixedOffset::east(TIMEZONE_OFFSET * 3600));
+                let now = Utc::now().with_timezone(&FixedOffset::east(TIMEZONE_OFFSET * 3600));
                 // render at 1 minute intervals.
                 let now_minute = now.minute();
                 if self.before_now != now_minute {
@@ -70,7 +65,6 @@ impl ZellijPlugin for State {
             }
             Event::ModeUpdate(mode_info) => {
                 if self.mode_info != mode_info {
-                    render = true;
                     self.mode_update = true;
                     self.mode_info = mode_info;
                 }
@@ -88,24 +82,21 @@ impl ZellijPlugin for State {
             self.pallet_fg = self.mode_info.style.colors.fg;
             self.pallet_bg = self.mode_info.style.colors.bg;
             self.datetime_bg_color = PaletteColor::Rgb(DATETIME_BG_COLOR);
-            // create line string
             let bg1 = self.pallet_bg;
             let bg2 = self.datetime_bg_color;
+            // create charctor
+            let arrow = &style!(bg2, bg2).bold().paint(ARROW_SPACE).to_string();
+            let sep_1 = &style!(bg2, bg1).bold().paint(ARROW_SEPARATOR_1).to_string();
+            let sep_2 = &style!(bg1, bg2).bold().paint(ARROW_SEPARATOR_2).to_string();
             self.lp_1 = String::new();
-            self.lp_1
-                .push_str(&style!(bg2, bg1).bold().paint(ARROW_SEPARATOR_1).to_string());
-            self.lp_1
-                .push_str(&style!(bg2, bg2).bold().paint(ARROW_SPACE).to_string());
+            self.lp_1.push_str(sep_1);
+            self.lp_1.push_str(arrow);
             self.lp_2 = String::new();
-            self.lp_2
-                .push_str(&style!(bg2, bg2).bold().paint(ARROW_SPACE).to_string());
-            self.lp_2
-                .push_str(&style!(bg1, bg2).bold().paint(ARROW_SEPARATOR_2).to_string());
-            self.lp_2
-                .push_str(&style!(bg2, bg2).bold().paint(ARROW_SPACE).to_string());
+            self.lp_2.push_str(arrow);
+            self.lp_2.push_str(sep_2);
+            self.lp_2.push_str(arrow);
             self.lp_3 = String::new();
-            self.lp_3
-                .push_str(&style!(bg2, bg2).bold().paint(ARROW_SPACE).to_string());
+            self.lp_3.push_str(arrow);
             self.mode_update = false;
         }
 
@@ -131,7 +122,9 @@ impl ZellijPlugin for State {
             if cols as isize - width as isize > 0 {
                 // only half width char
                 let padding = ARROW_SPACE.repeat(cols - width);
-                self.padding = style!(self.pallet_fg, self.pallet_bg).paint(padding).to_string();
+                self.padding = style!(self.pallet_fg, self.pallet_bg)
+                    .paint(padding)
+                    .to_string();
             } else {
                 self.padding = String::new();
             }