diff --git a/Cargo.lock b/Cargo.lock
index ed592cb..552bdf8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -442,7 +442,7 @@ dependencies = [
 
 [[package]]
 name = "qvnt"
-version = "0.4.2"
+version = "0.4.3"
 dependencies = [
  "criterion",
  "enum_dispatch",
diff --git a/Cargo.toml b/Cargo.toml
index d124752..ccb2a71 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name                = "qvnt"
-version             = "0.4.2"
+version             = "0.4.3"
 description         = "Advanced quantum computation simulator."
 keywords            = ["theoretical", "quantum-computing", "quantum-simulator", "quantum", "qubits"]
 categories          = ["concurrency", "simulation", "mathematics", "science"]
@@ -27,7 +27,7 @@ criterion           = "0.3.5"
 test-case           = "2.2.1"
 
 [features]
-default             = ["multi-thread", "interpreter"]
+default             = []
 multi-thread        = ["rayon", "lazy_static"]
 cpu                 = ["multi-thread"]
 interpreter         = ["qasm", "meval"]