diff --git a/dm-postgres-adapter.gemspec b/dm-postgres-adapter.gemspec
index cd22bb2..b4d98c4 100644
--- a/dm-postgres-adapter.gemspec
+++ b/dm-postgres-adapter.gemspec
@@ -5,11 +5,11 @@
 
 Gem::Specification.new do |s|
   s.name = "dm-postgres-adapter"
-  s.version = "1.1.1"
+  s.version = "1.2.0.rc1"
 
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  s.required_rubygems_version = Gem::Requirement.new("> 1.3.1") if s.respond_to? :required_rubygems_version=
   s.authors = ["Dan Kubb"]
-  s.date = "2011-09-01"
+  s.date = "2011-09-05"
   s.description = "PostgreSQL Adapter for DataMapper"
   s.email = "dan.kubb@gmail.com"
   s.extra_rdoc_files = [
@@ -43,23 +43,23 @@ Gem::Specification.new do |s|
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
       s.add_runtime_dependency(%q<do_postgres>, ["~> 0.10.6"])
-      s.add_runtime_dependency(%q<dm-do-adapter>, ["~> 1.1.1"])
-      s.add_development_dependency(%q<dm-migrations>, ["~> 1.1.1"])
+      s.add_runtime_dependency(%q<dm-do-adapter>, ["~> 1.2.0.rc1"])
+      s.add_development_dependency(%q<dm-migrations>, ["~> 1.2.0.rc1"])
       s.add_development_dependency(%q<jeweler>, ["~> 1.6.4"])
       s.add_development_dependency(%q<rake>, ["~> 0.9.2"])
       s.add_development_dependency(%q<rspec>, ["~> 1.3.2"])
     else
       s.add_dependency(%q<do_postgres>, ["~> 0.10.6"])
-      s.add_dependency(%q<dm-do-adapter>, ["~> 1.1.1"])
-      s.add_dependency(%q<dm-migrations>, ["~> 1.1.1"])
+      s.add_dependency(%q<dm-do-adapter>, ["~> 1.2.0.rc1"])
+      s.add_dependency(%q<dm-migrations>, ["~> 1.2.0.rc1"])
       s.add_dependency(%q<jeweler>, ["~> 1.6.4"])
       s.add_dependency(%q<rake>, ["~> 0.9.2"])
       s.add_dependency(%q<rspec>, ["~> 1.3.2"])
     end
   else
     s.add_dependency(%q<do_postgres>, ["~> 0.10.6"])
-    s.add_dependency(%q<dm-do-adapter>, ["~> 1.1.1"])
-    s.add_dependency(%q<dm-migrations>, ["~> 1.1.1"])
+    s.add_dependency(%q<dm-do-adapter>, ["~> 1.2.0.rc1"])
+    s.add_dependency(%q<dm-migrations>, ["~> 1.2.0.rc1"])
     s.add_dependency(%q<jeweler>, ["~> 1.6.4"])
     s.add_dependency(%q<rake>, ["~> 0.9.2"])
     s.add_dependency(%q<rspec>, ["~> 1.3.2"])