diff --git a/Gemfile.lock b/Gemfile.lock
index c85f203..108fa49 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,20 +3,20 @@ PATH
   specs:
     postgres_to_redshift (0.1.2)
       aws-sdk-v1 (~> 1.54)
-      pg (~> 0.17.0)
+      pg (~> 0.18.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    aws-sdk-v1 (1.66.0)
+    aws-sdk-v1 (1.67.0)
       json (~> 1.4)
-      nokogiri (>= 1.4.4)
+      nokogiri (~> 1)
     diff-lcs (1.2.5)
-    json (1.8.3)
-    mini_portile (0.6.2)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
-    pg (0.17.1)
+    json (1.8.6)
+    mini_portile2 (2.3.0)
+    nokogiri (1.8.5)
+      mini_portile2 (~> 2.3.0)
+    pg (0.18.4)
     rake (10.4.2)
     rspec (3.2.0)
       rspec-core (~> 3.2.0)
@@ -42,4 +42,4 @@ DEPENDENCIES
   rspec
 
 BUNDLED WITH
-   1.10.5
+   1.16.1
diff --git a/lib/postgres_to_redshift/column.rb b/lib/postgres_to_redshift/column.rb
index 2b3a13f..fb53102 100644
--- a/lib/postgres_to_redshift/column.rb
+++ b/lib/postgres_to_redshift/column.rb
@@ -53,6 +53,8 @@ class PostgresToRedshift::Column
     "bytea" => "CHARACTER VARYING(65535)",
     "money" => "DECIMAL(19,2)",
     "oid" => "CHARACTER VARYING(65535)",
+    "time without time zone" => "CHARACTER VARYING(20)",
+    "bit" => "CHARACTER(1)",
     "ARRAY" => "CHARACTER VARYING(65535)",
     "USER-DEFINED" => "CHARACTER VARYING(65535)",
   }
@@ -77,8 +79,24 @@ def data_type
     attributes["data_type"]
   end
 
+  def numeric_precision
+    attributes["numeric_precision"].to_i
+  end
+
+  def numeric_scale
+    attributes["numeric_scale"].to_i
+  end
+
   def data_type_for_copy
-    CAST_TYPES_FOR_COPY[data_type] || data_type
+    if data_type == 'numeric'
+      if numeric_precision == 0
+        "FLOAT"
+      else
+        "DECIMAL(#{numeric_precision},#{numeric_scale})"
+      end
+    else
+      CAST_TYPES_FOR_COPY[data_type] || data_type
+    end
   end
 
   private