diff --git a/debian/patches/0006-Use-narray-instead-of-numru-narray.patch b/debian/patches/0006-Use-narray-instead-of-numru-narray.patch
index a10ca123cfec95b6b2ff2c39e15ac5652c60532e..13559e2ecd31d0eeb65239ff2f073ed2081f2bfb 100644
--- a/debian/patches/0006-Use-narray-instead-of-numru-narray.patch
+++ b/debian/patches/0006-Use-narray-instead-of-numru-narray.patch
@@ -26,7 +26,7 @@ Signed-off-by: Youhei SASAKI <uwabami@gfd-dennou.org>
  
      if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
 -      s.add_runtime_dependency(%q<numru-narray>, ["~> 1.0"])
-+      s.add_runtime_dependency(%q<narray>, [">= 0.6.2"])
++      s.add_runtime_dependency(%q<narray>, [">= 0.6.1"])
        s.add_development_dependency(%q<rspec>, [">= 2.3.0"])
        s.add_development_dependency(%q<bundler>, [">= 1.0.0"])
        s.add_development_dependency(%q<jeweler>, [">= 1.5.2"])
@@ -34,7 +34,7 @@ Signed-off-by: Youhei SASAKI <uwabami@gfd-dennou.org>
        s.add_development_dependency(%q<rake-compiler>, [">= 0"])
      else
 -      s.add_dependency(%q<numru-narray>, ["~> 1.0"])
-+      s.add_dependency(%q<narray>, [">= 0.6.2"])
++      s.add_dependency(%q<narray>, [">= 0.6.1"])
        s.add_dependency(%q<rspec>, [">= 2.3.0"])
        s.add_dependency(%q<bundler>, [">= 1.0.0"])
        s.add_dependency(%q<jeweler>, [">= 1.5.2"])
@@ -43,7 +43,7 @@ Signed-off-by: Youhei SASAKI <uwabami@gfd-dennou.org>
      end
    else
 -    s.add_dependency(%q<numru-narray>, ["~> 1.0"])
-+    s.add_dependency(%q<narray>, [">= 0.6.2"])
++    s.add_dependency(%q<narray>, [">= 0.6.1"])
      s.add_dependency(%q<rspec>, [">= 2.3.0"])
      s.add_dependency(%q<bundler>, [">= 1.0.0"])
      s.add_dependency(%q<jeweler>, [">= 1.5.2"])