1 files changed, 2 insertions, 2 deletions
diff --git a/lib/server.rb b/lib/server.rb
index 25a9733..d45b773 100644
--- a/lib/server.rb
+++ b/lib/server.rb
@@ -1,5 +1,5 @@
 #!/usr/bin/env ruby
-require 'digest/sha1'
+require 'digest'
 require 'rack'
 require 'json'
 
@@ -43,7 +43,7 @@ class DataStorageServer
   # and the first 1024 bytes are stored.
   def put(io)
     data = io.read(MAX_BYTES)
-    oid = Digest::SHA1.hexdigest(data)
+    oid = Digest::SHA256.hexdigest(data)
     @storage[oid] = data
     ['201', {}, [JSON.generate({ size: data.size, oid: oid })]]
   end