diff --git a/Cargo.lock b/Cargo.lock
index 67624b0..4d9d007 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -558,7 +558,7 @@ dependencies = [
 
 [[package]]
 name = "tzfpy"
-version = "0.15.2"
+version = "0.15.3"
 dependencies = [
  "lazy_static",
  "pyo3",
diff --git a/Cargo.toml b/Cargo.toml
index a232c4a..37d9f80 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 edition = "2021"
 name = "tzfpy"
-version = "0.15.2"
+version = "0.15.3"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
diff --git a/README.md b/README.md
index 366055c..cf9e286 100644
--- a/README.md
+++ b/README.md
@@ -40,25 +40,25 @@ conda install -c conda-forge tzfpy
 ## Performance
 
 Benchmark runs under
-[`v0.15.0`](https://github.com/ringsaturn/tzfpy/releases/tag/v0.15.0) on my
-MacBook Pro with 2.3 GHz 8-Core Intel Core i9.
+[`v0.15.3`](https://github.com/ringsaturn/tzfpy/releases/tag/v0.15.3) on my
+MacBook Pro with Apple M3 Max.
 
 ```bash
 pytest tests/test_bench.py
 ```
 
 ```
--------------------------------------------------- benchmark: 1 tests --------------------------------------------------
-Name (time in us)               Min      Max    Mean  StdDev  Median     IQR  Outliers  OPS (Kops/s)  Rounds  Iterations
-------------------------------------------------------------------------------------------------------------------------
-test_tzfpy_random_cities     1.4783  34.8846  3.6341  1.9382  3.2185  2.1708  4384;754      275.1715   20000          10
-------------------------------------------------------------------------------------------------------------------------
+------------------------------------------------------------ benchmark: 1 tests ------------------------------------------------------------
+Name (time in ns)                 Min          Max        Mean    StdDev      Median         IQR  Outliers  OPS (Kops/s)  Rounds  Iterations
+--------------------------------------------------------------------------------------------------------------------------------------------
+test_tzfpy_random_cities     837.4918  11,183.2982  1,973.3456  833.9543  1,820.9103  1,066.7020  6422;511      506.7536   20000          10
+--------------------------------------------------------------------------------------------------------------------------------------------
 
 Legend:
   Outliers: 1 Standard Deviation from Mean; 1.5 IQR (InterQuartile Range) from 1st Quartile and 3rd Quartile.
   OPS: Operations Per Second, computed as 1 / Mean
-Results (1.10s):
-         1 passed
+Results (1.95s):
+         4 passed
 ```
 
 Or you can view more benchmark results on
diff --git a/tzfpy.pyi b/tzfpy.pyi
index 93a965e..98ee6b3 100644
--- a/tzfpy.pyi
+++ b/tzfpy.pyi
@@ -2,7 +2,6 @@
 """
 from typing import List
 
-
 def get_tz(lng: float, lat: float) -> str:
     """Get timezonename for location.
 
@@ -10,7 +9,6 @@ def get_tz(lng: float, lat: float) -> str:
     """
     ...
 
-
 def get_tzs(lng: float, lat: float) -> List[str]:
     """Get timezonenames for location.
 
@@ -18,12 +16,10 @@ def get_tzs(lng: float, lat: float) -> List[str]:
     """
     ...
 
-
 def timezonenames() -> List[str]:
     """Show all support timezone names."""
     ...
 
-
 def data_version() -> str:
     """Show current tzdata version"""
     ...