diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 13e5ac59..8acc029e 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -578,20 +578,6 @@ Style/SpecialGlobalVars:
 Style/StringLiterals:
   Enabled: false
 
-# Offense count: 11
-# Cop supports --auto-correct.
-# Configuration parameters: IgnoredMethods.
-Style/SymbolProc:
-  Exclude:
-    - 'lib/net/ber.rb'
-    - 'lib/net/ber/core_ext/array.rb'
-    - 'lib/net/ldap/connection.rb'
-    - 'lib/net/ldap/dataset.rb'
-    - 'lib/net/ldap/filter.rb'
-    - 'test/ber/test_ber.rb'
-    - 'test/test_ldif.rb'
-    - 'testserver/ldapserver.rb'
-
 # Offense count: 5
 # Cop supports --auto-correct.
 Style/UnneededPercentQ:
diff --git a/lib/net/ber.rb b/lib/net/ber.rb
index baf08e14..88f8862e 100644
--- a/lib/net/ber.rb
+++ b/lib/net/ber.rb
@@ -270,7 +270,7 @@ class Net::BER::BerIdentifiedOid
 
   def initialize(oid)
     if oid.is_a?(String)
-      oid = oid.split(/\./).map {|s| s.to_i }
+      oid = oid.split(/\./).map(&:to_i)
     end
     @value = oid
   end
diff --git a/lib/net/ber/core_ext/array.rb b/lib/net/ber/core_ext/array.rb
index 250fa243..9deb4a1e 100644
--- a/lib/net/ber/core_ext/array.rb
+++ b/lib/net/ber/core_ext/array.rb
@@ -89,7 +89,7 @@ def to_ber_control
     #if our array does not contain at least one array then wrap it in an array before going forward
     ary = self[0].kind_of?(Array) ? self : [self]
     ary = ary.collect do |control_sequence|
-      control_sequence.collect{|element| element.to_ber}.to_ber_sequence.reject_empty_ber_arrays
+      control_sequence.collect(&:to_ber).to_ber_sequence.reject_empty_ber_arrays
     end
     ary.to_ber_sequence.reject_empty_ber_arrays
   end
diff --git a/lib/net/ldap/connection.rb b/lib/net/ldap/connection.rb
index 96e735b9..f8ba0b61 100644
--- a/lib/net/ldap/connection.rb
+++ b/lib/net/ldap/connection.rb
@@ -409,7 +409,7 @@ def search(args = nil)
             Net::LDAP::LDAPControls::PAGED_RESULTS.to_ber,
             # Criticality MUST be false to interoperate with normal LDAPs.
             false.to_ber,
-            rfc2696_cookie.map{ |v| v.to_ber}.to_ber_sequence.to_s.to_ber,
+            rfc2696_cookie.map(&:to_ber).to_ber_sequence.to_s.to_ber,
           ].to_ber_sequence if paged
         controls << ber_sort if ber_sort
         controls = controls.empty? ? nil : controls.to_ber_contextspecific(0)
@@ -604,7 +604,7 @@ def add(args)
     add_dn = args[:dn] or raise Net::LDAP::EmptyDNError, "Unable to add empty DN"
     add_attrs = []
     a = args[:attributes] and a.each do |k, v|
-      add_attrs << [k.to_s.to_ber, Array(v).map { |m| m.to_ber}.to_ber_set].to_ber_sequence
+      add_attrs << [k.to_s.to_ber, Array(v).map(&:to_ber).to_ber_set].to_ber_sequence
     end
 
     message_id = next_msgid
diff --git a/lib/net/ldap/dataset.rb b/lib/net/ldap/dataset.rb
index 47810ce7..9027ed28 100644
--- a/lib/net/ldap/dataset.rb
+++ b/lib/net/ldap/dataset.rb
@@ -29,7 +29,7 @@ def to_ldif
     keys.sort.each do |dn|
       ary << "dn: #{dn}"
 
-      attributes = self[dn].keys.map { |attr| attr.to_s }.sort
+      attributes = self[dn].keys.map(&:to_s).sort
       attributes.each do |attr|
         self[dn][attr.to_sym].each do |value|
           if attr == "userpassword" or value_is_binary?(value)
diff --git a/lib/net/ldap/filter.rb b/lib/net/ldap/filter.rb
index 084b997d..7f418ae3 100644
--- a/lib/net/ldap/filter.rb
+++ b/lib/net/ldap/filter.rb
@@ -550,10 +550,10 @@ def to_ber
       [self.class.eq(@left, @right).to_ber].to_ber_contextspecific(2)
     when :and
       ary = [@left.coalesce(:and), @right.coalesce(:and)].flatten
-      ary.map {|a| a.to_ber}.to_ber_contextspecific(0)
+      ary.map(&:to_ber).to_ber_contextspecific(0)
     when :or
       ary = [@left.coalesce(:or), @right.coalesce(:or)].flatten
-      ary.map {|a| a.to_ber}.to_ber_contextspecific(1)
+      ary.map(&:to_ber).to_ber_contextspecific(1)
     when :not
       [@left.to_ber].to_ber_contextspecific(2)
     end
diff --git a/test/ber/test_ber.rb b/test/ber/test_ber.rb
index c2f5a568..5d5c1266 100644
--- a/test/ber/test_ber.rb
+++ b/test/ber/test_ber.rb
@@ -7,7 +7,7 @@ def test_empty_array
 
   def test_array
     ary = [1, 2, 3]
-    encoded_ary = ary.map { |el| el.to_ber }.to_ber
+    encoded_ary = ary.map(&:to_ber).to_ber
 
     assert_equal ary, encoded_ary.read_ber
   end
diff --git a/testserver/ldapserver.rb b/testserver/ldapserver.rb
index eb0c40d3..809f9e7e 100644
--- a/testserver/ldapserver.rb
+++ b/testserver/ldapserver.rb
@@ -119,7 +119,7 @@ def handle_search_request pdu
     # pdu[1][7] is the list of requested attributes.
     # If it's an empty array, that means that *all* attributes were requested.
     requested_attrs = if pdu[1][7].length > 0
-      pdu[1][7].map {|a| a.downcase}
+      pdu[1][7].map(&:downcase)
     else
       :all
     end
@@ -138,7 +138,7 @@ def handle_search_request pdu
         attrs = []
         entry.each do |k, v|
           if requested_attrs == :all or requested_attrs.include?(k.downcase)
-            attrvals = v.map {|v1| v1.to_ber}.to_ber_set
+            attrvals = v.map(&:to_ber).to_ber_set
             attrs << [k.to_ber, attrvals].to_ber_sequence
           end
         end