diff --git a/src/models/data.rs b/src/models/data.rs
index 9e94e9a..fe3533c 100644
--- a/src/models/data.rs
+++ b/src/models/data.rs
@@ -63,8 +63,7 @@ fn assert_magic<T: Into<u32> + PartialEq>(actual: T, expected: T) -> Result {
 #[inline]
 fn read_length_delimited(reader: &mut impl Read) -> Result<Vec<u8>> {
     let length = reader.read_u8()? as usize;
-    let mut buffer = Vec::new();
-    buffer.resize(length, 0);
+    let mut buffer = vec![0; length];
     reader.read_exact(&mut buffer)?;
     Ok(buffer)
 }
@@ -76,8 +75,7 @@ fn read_string(reader: &mut impl Read) -> Result<String> {
 
 #[inline]
 fn read_pickled<T: DeserializeOwned>(reader: &mut impl Read, length: usize) -> Result<T> {
-    let mut buffer = Vec::new();
-    buffer.resize(length, 0);
+    let mut buffer = vec![0; length];
     reader.read_exact(&mut buffer)?;
     Ok(serde_pickle::from_slice(&buffer, Default::default())?)
 }
diff --git a/src/models/data/base_player_create.rs b/src/models/data/base_player_create.rs
index 88e6c2b..a9dad01 100644
--- a/src/models/data/base_player_create.rs
+++ b/src/models/data/base_player_create.rs
@@ -5,7 +5,7 @@ use serde::{Deserialize, Serialize};
 #[derive(Debug, Serialize, Deserialize)]
 pub struct BasePlayerCreate {
     #[serde(default, rename(deserialize = "playersBattleCategoriesIds"))]
-    pub players_battle_categories_ids: Option<HashMap<u32, (u8, u32)>>,
+    pub players_battle_categories_ids: Option<HashMap<u64, (u8, u32)>>,
 
     #[serde(rename(deserialize = "battleLevel"))]
     pub battle_level: u8,
@@ -34,10 +34,10 @@ pub struct BasePlayerCreate {
     pub average_mm_ratings: Option<Vec<Option<f64>>>,
 
     #[serde(default, rename(deserialize = "playerWaitTimes"))]
-    pub player_wait_times: Option<HashMap<u32, f64>>,
+    pub player_wait_times: Option<HashMap<u64, f64>>,
 
     #[serde(rename(deserialize = "accountDatabaseIds"))]
-    pub account_database_ids: Option<Vec<u32>>,
+    pub account_database_ids: Option<Vec<u64>>,
 
     #[serde(default, rename(deserialize = "turboBattlesStats"))]
     pub turbo_battles_statistics: Option<TurboBattlesStatistics>,
diff --git a/src/models/data/packet.rs b/src/models/data/packet.rs
index 98f402f..0f06659 100644
--- a/src/models/data/packet.rs
+++ b/src/models/data/packet.rs
@@ -35,7 +35,9 @@ impl Packet {
     ///
     /// Parsed packet, or [`None`], when no packets are left.
     pub fn from_reader(reader: &mut impl Read) -> Result<Option<Self>> {
-        let Ok(length) = reader.read_u32::<LittleEndian>() else { return Ok(None) };
+        let Ok(length) = reader.read_u32::<LittleEndian>() else {
+            return Ok(None);
+        };
         let type_ = reader.read_u32::<LittleEndian>()?;
         let clock_secs = reader.read_f32::<LittleEndian>()?;
         let raw_payload = Self::read_raw_payload(reader, length as usize)?;
@@ -57,8 +59,7 @@ impl Packet {
     }
 
     fn read_raw_payload(reader: &mut impl Read, length: usize) -> Result<Vec<u8>> {
-        let mut buffer = Vec::new();
-        buffer.resize(length, 0);
+        let mut buffer = vec![0; length];
         reader.read_exact(&mut buffer)?;
         Ok(buffer)
     }