diff --git a/docker/Dockerfile b/docker/Dockerfile
index 0609ffd..bddb1b3 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -22,6 +22,11 @@ COPY src/ScadaLink.InboundAPI/ScadaLink.InboundAPI.csproj src/ScadaLink.InboundA
 COPY src/ScadaLink.ConfigurationDatabase/ScadaLink.ConfigurationDatabase.csproj src/ScadaLink.ConfigurationDatabase/
 COPY src/ScadaLink.ManagementService/ScadaLink.ManagementService.csproj src/ScadaLink.ManagementService/
 
+# Central Package Management: every .csproj declares versionless PackageReferences
+# and the versions live in Directory.Packages.props. It must be present (above the
+# projects) for `dotnet restore` to resolve versions — without it restore fails NU1015.
+COPY Directory.Packages.props ./
+
 # Restore NuGet packages via Host project (follows ProjectReferences to all dependencies)
 # This layer is cached until any .csproj changes — source-only changes skip restore entirely
 RUN dotnet restore src/ScadaLink.Host/ScadaLink.Host.csproj