diff --git a/Cargo.toml b/Cargo.toml
index 9d06932..b19f869 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bdflib"
-version = "0.4.3"
+version = "0.4.4"
 authors = ["trivernis <trivernis@gmail.com>"]
 edition = "2018"
 license-file = "LICENSE"
diff --git a/src/io.rs b/src/io.rs
index fadd855..7a985a4 100644
--- a/src/io.rs
+++ b/src/io.rs
@@ -233,7 +233,7 @@ impl BDFReader {
             lookup_table: None,
             reader: BufReader::new(inner),
             compressed: false,
-            thread_manager: ThreadManager::new(num_cpus::get()),
+            thread_manager: ThreadManager::new(num_cpus::get() * 2),
         }
     }