diff --git a/spec/plsql/connection_spec.rb b/spec/plsql/connection_spec.rb
index c6f2e53..3ddb754 100644
--- a/spec/plsql/connection_spec.rb
+++ b/spec/plsql/connection_spec.rb
@@ -1,7 +1,5 @@
 # encoding: utf-8
 
-require "spec_helper"
-
 RSpec.describe "Connection" do
 
   before(:all) do
diff --git a/spec/plsql/package_spec.rb b/spec/plsql/package_spec.rb
index 71e0978..d3853f1 100644
--- a/spec/plsql/package_spec.rb
+++ b/spec/plsql/package_spec.rb
@@ -1,5 +1,3 @@
-require "spec_helper"
-
 RSpec.describe "Package" do
   before(:all) do
     plsql.connection = get_connection
diff --git a/spec/plsql/procedure_spec.rb b/spec/plsql/procedure_spec.rb
index 9951d58..06cdeb6 100644
--- a/spec/plsql/procedure_spec.rb
+++ b/spec/plsql/procedure_spec.rb
@@ -1,7 +1,5 @@
 # encoding: utf-8
 
-require "spec_helper"
-
 RSpec.describe "Parameter type mapping /" do
 
   shared_examples "Function with string parameters" do |datatype|
diff --git a/spec/plsql/schema_spec.rb b/spec/plsql/schema_spec.rb
index 5df95a4..9d177a9 100644
--- a/spec/plsql/schema_spec.rb
+++ b/spec/plsql/schema_spec.rb
@@ -1,5 +1,3 @@
-require "spec_helper"
-
 RSpec.describe "Schema" do
 
   it "should create Schema object" do
diff --git a/spec/plsql/sequence_spec.rb b/spec/plsql/sequence_spec.rb
index 9702e16..bfc9443 100644
--- a/spec/plsql/sequence_spec.rb
+++ b/spec/plsql/sequence_spec.rb
@@ -1,5 +1,3 @@
-require "spec_helper"
-
 RSpec.describe "Table" do
   before(:all) do
     plsql.connection = get_connection
diff --git a/spec/plsql/sql_statements_spec.rb b/spec/plsql/sql_statements_spec.rb
index d5fd49d..d30a910 100644
--- a/spec/plsql/sql_statements_spec.rb
+++ b/spec/plsql/sql_statements_spec.rb
@@ -1,5 +1,3 @@
-require "spec_helper"
-
 RSpec.describe "SQL statements /" do
   before(:all) do
     plsql.connect! CONNECTION_PARAMS
diff --git a/spec/plsql/table_spec.rb b/spec/plsql/table_spec.rb
index da636f5..9847bcc 100644
--- a/spec/plsql/table_spec.rb
+++ b/spec/plsql/table_spec.rb
@@ -1,5 +1,3 @@
-require "spec_helper"
-
 RSpec.describe "Table" do
   before(:all) do
     plsql.connect! CONNECTION_PARAMS
diff --git a/spec/plsql/type_spec.rb b/spec/plsql/type_spec.rb
index b837371..acfb2c3 100644
--- a/spec/plsql/type_spec.rb
+++ b/spec/plsql/type_spec.rb
@@ -1,5 +1,3 @@
-require "spec_helper"
-
 RSpec.describe "Type" do
   before(:all) do
     plsql.connection = get_connection
diff --git a/spec/plsql/variable_spec.rb b/spec/plsql/variable_spec.rb
index d4c6b46..8f57648 100644
--- a/spec/plsql/variable_spec.rb
+++ b/spec/plsql/variable_spec.rb
@@ -1,7 +1,5 @@
 # encoding: utf-8
 
-require "spec_helper"
-
 RSpec.describe "Package variables /" do
 
   describe "String" do
diff --git a/spec/plsql/version_spec.rb b/spec/plsql/version_spec.rb
index 476053e..d421e87 100644
--- a/spec/plsql/version_spec.rb
+++ b/spec/plsql/version_spec.rb
@@ -1,5 +1,3 @@
-require "spec_helper"
-
 RSpec.describe "Version" do
   it "should return ruby-plsql version" do
     expect(PLSQL::VERSION).to eq(File.read(File.dirname(__FILE__) + "/../../VERSION").chomp)
diff --git a/spec/plsql/view_spec.rb b/spec/plsql/view_spec.rb
index dc40f42..47edefc 100644
--- a/spec/plsql/view_spec.rb
+++ b/spec/plsql/view_spec.rb
@@ -1,5 +1,3 @@
-require "spec_helper"
-
 RSpec.describe "View" do
   before(:all) do
     plsql.connect! CONNECTION_PARAMS