diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4dcbfd7..adeb9f20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+### Version 0.3.4 (Jun 28, 2019)
+
+ * Fix DateTime sql format without microseconds for Rails 5.2 
+ * Support ssl connection
+ * Migration support
+ * Rake tasks for create / drop database
+ 
 ### Version 0.3.0 (Nov 27, 2018)
 
  * Support materialized view
diff --git a/clickhouse-activerecord.gemspec b/clickhouse-activerecord.gemspec
index caa4efb8..95a55df6 100644
--- a/clickhouse-activerecord.gemspec
+++ b/clickhouse-activerecord.gemspec
@@ -23,11 +23,11 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_dependency "bundler", ">= 1.13.4"
-  spec.add_dependency 'activerecord', '>= 5.2'
+  spec.add_runtime_dependency 'bundler', '~> 1.13', '>= 1.13.4'
+  spec.add_runtime_dependency 'activerecord', '~> 5.2'
 
   spec.add_development_dependency 'bundler', '~> 1.15'
   spec.add_development_dependency 'rake', '~> 10.0'
-  spec.add_development_dependency 'rspec'
-  spec.add_development_dependency 'pry'
+  spec.add_development_dependency 'rspec', '~> 3.4'
+  spec.add_development_dependency 'pry', '~> 0.12'
 end
diff --git a/lib/active_record/connection_adapters/clickhouse/oid/date_time.rb b/lib/active_record/connection_adapters/clickhouse/oid/date_time.rb
index 26fc1be0..82232810 100644
--- a/lib/active_record/connection_adapters/clickhouse/oid/date_time.rb
+++ b/lib/active_record/connection_adapters/clickhouse/oid/date_time.rb
@@ -8,7 +8,7 @@ class DateTime < Type::DateTime # :nodoc:
 
           def serialize(value)
             value = super
-            return value unless value.acts_like?(:time)
+            return value.strftime('%Y-%m-%d %H:%M:%S') unless value.acts_like?(:time)
 
             value.to_time.strftime('%Y-%m-%d %H:%M:%S')
           end
diff --git a/lib/active_record/connection_adapters/clickhouse_adapter.rb b/lib/active_record/connection_adapters/clickhouse_adapter.rb
index 51a54af7..6d1d58ed 100644
--- a/lib/active_record/connection_adapters/clickhouse_adapter.rb
+++ b/lib/active_record/connection_adapters/clickhouse_adapter.rb
@@ -117,6 +117,19 @@ def initialize_type_map(m) # :nodoc:
         register_class_with_limit m, %r(Int64), Type::Integer
       end
 
+      # Quoting time without microseconds
+      def quoted_date(value)
+        if value.acts_like?(:time)
+          zone_conversion_method = ActiveRecord::Base.default_timezone == :utc ? :getutc : :getlocal
+
+          if value.respond_to?(zone_conversion_method)
+            value = value.send(zone_conversion_method)
+          end
+        end
+
+        value.to_s(:db)
+      end
+
       # Executes insert +sql+ statement in the context of this connection using
       # +binds+ as the bind substitutes. +name+ is logged along with
       # the executed +sql+ statement.
diff --git a/lib/clickhouse-activerecord/version.rb b/lib/clickhouse-activerecord/version.rb
index 456211d9..2d7e77f5 100644
--- a/lib/clickhouse-activerecord/version.rb
+++ b/lib/clickhouse-activerecord/version.rb
@@ -1,3 +1,3 @@
 module ClickhouseActiverecord
-  VERSION = '0.3.3'
+  VERSION = '0.3.4'
 end