diff --git a/CHANGELOG.md b/CHANGELOG.md
index baf714c..42b4a4a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+Version 2.3.8
+-------------
+
+Bug fixes:
+
+* Restored support for PostgreSQL with Rails versions before 5.0.0 broken in Seed Fu 2.3.7.
+
 Version 2.3.7
 -------------
 
diff --git a/lib/seed-fu/seeder.rb b/lib/seed-fu/seeder.rb
index def2a43..3a48393 100644
--- a/lib/seed-fu/seeder.rb
+++ b/lib/seed-fu/seeder.rb
@@ -91,7 +91,8 @@ def update_id_sequence
           quoted_id       = @model_class.connection.quote_column_name(@model_class.primary_key)
           sequence = @model_class.sequence_name
 
-          if @model_class.connection.postgresql_version >= 100000
+          # TODO postgresql_version was made public in Rails 5.0.0, remove #send when support for earlier versions are dropped
+          if @model_class.connection.send(:postgresql_version) >= 100000
             sql =<<-EOS
               SELECT setval('#{sequence}', (SELECT GREATEST(MAX(#{quoted_id})+(SELECT seqincrement FROM pg_sequence WHERE seqrelid = '#{sequence}'::regclass), (SELECT seqmin FROM pg_sequence WHERE seqrelid = '#{sequence}'::regclass)) FROM #{@model_class.quoted_table_name}), false)
             EOS