diff --git a/nuget-host.sln b/apple.sln
similarity index 100%
rename from nuget-host.sln
rename to apple.sln
diff --git a/src/nuget-host/Controllers/PackagesController.cs b/src/nuget-host/Controllers/PackagesController.cs
index a9a4e75..dffaae9 100644
--- a/src/nuget-host/Controllers/PackagesController.cs
+++ b/src/nuget-host/Controllers/PackagesController.cs
@@ -131,17 +131,29 @@ namespace nuget_host.Controllers
 
                                 source.MoveTo(fullpath);
                                 files.Add(name);
-                                var newversion = new PackageVersion
+                                string fullstringversion = version.ToFullString();
+                                PackageVersion pkgver = dbContext.PackageVersions.FirstOrDefault
+                                (v => v.PackageId == package.Id && v.FullString == fullstringversion);
+                                if (pkgver == null)
                                 {
-                                    Package = package,
-                                    Major = version.Major,
-                                    Minor = version.Minor,
-                                    Patch = version.Patch,
-                                    IsPrerelease = version.IsPrerelease,
-                                    FullString = version.ToFullString()
-                                };
-                                dbContext.PackageVersions.Add(newversion);
-                                await dbContext.SaveChangesAsync();
+                                    pkgver = new PackageVersion
+                                    {
+                                        Package = package,
+                                        Major = version.Major,
+                                        Minor = version.Minor,
+                                        Patch = version.Patch,
+                                        IsPrerelease = version.IsPrerelease,
+                                        FullString = version.ToFullString()
+                                    };
+                                    dbContext.PackageVersions.Add(pkgver);
+                                    await dbContext.SaveChangesAsync();
+                                }
+                                else 
+                                {
+                                    // existant en db mais pas sur le disque
+                                    // TODO prise en charge de ce cas anormal
+                                }
+
                                 logger.LogInformation($"new package : {nuspec.Name}");
                             }
                         }