diff --git a/db/config.yml b/db/config.yml
index 19d1e9d..0b93e4f 100644
--- a/db/config.yml
+++ b/db/config.yml
@@ -2,7 +2,7 @@ default: &default
   adapter: postgresql
   database: jsonb_accessor
   host: <%= ENV.fetch("DATABASE_HOST") { "127.0.0.1" } %>
-  user: postgres
+  username: <%= ENV.fetch("DATABASE_USER") { "postgres" } %>
 
 test:
   <<: *default
diff --git a/lib/jsonb_accessor/helpers.rb b/lib/jsonb_accessor/helpers.rb
index a6f452e..d26a118 100644
--- a/lib/jsonb_accessor/helpers.rb
+++ b/lib/jsonb_accessor/helpers.rb
@@ -24,14 +24,23 @@ def deserialize_value(value, attribute_type)
       return value if value.blank?
 
       if attribute_type == :datetime
-        value = if active_record_default_timezone == :utc
-                  Time.find_zone("UTC").parse(value).in_time_zone
+        value = if value.is_a?(Array)
+                  value.map { |v| parse_date(v) }
                 else
-                  Time.zone.parse(value)
+                  parse_date(value)
                 end
       end
 
       value
     end
+
+    # Parse datetime based on the configured default_timezone
+    def parse_date(datetime)
+      if active_record_default_timezone == :utc
+        Time.find_zone("UTC").parse(datetime).in_time_zone
+      else
+        Time.zone.parse(datetime)
+      end
+    end
   end
 end
diff --git a/spec/jsonb_accessor_spec.rb b/spec/jsonb_accessor_spec.rb
index b474a65..7679380 100644
--- a/spec/jsonb_accessor_spec.rb
+++ b/spec/jsonb_accessor_spec.rb
@@ -19,7 +19,8 @@ def build_class(jsonb_accessor_config, &block)
       bar: :integer,
       ban: :integer,
       baz: [:integer, { array: true }],
-      bazzle: [:integer, { default: 5 }]
+      bazzle: [:integer, { default: 5 }],
+      dates: [:datetime, { array: true }]
     ) do
       enum ban: { foo: 1, bar: 2 }
     end
@@ -58,6 +59,17 @@ def build_class(jsonb_accessor_config, &block)
       expect(instance.baz).to eq([1, 2, 3])
     end
 
+    it "supports array of date" do
+      # Write
+      instance.dates = [Date.new(2017, 1, 1), Date.new(2017, 1, 2)]
+      expect { instance.save! }.to_not raise_error
+      # Read
+      instance.reload
+
+      expect(instance.dates).to be_kind_of Array
+      expect(instance.dates.first).to be_kind_of Time
+    end
+
     it "supports defaults" do
       expect(instance.bazzle).to eq(5)
     end