diff --git a/services/directory/src/FilterLists.Directory.Api/Dockerfile.dev b/services/directory/src/FilterLists.Directory.Api/Dockerfile.dev
index 83c621dba..8d8440fd0 100644
--- a/services/directory/src/FilterLists.Directory.Api/Dockerfile.dev
+++ b/services/directory/src/FilterLists.Directory.Api/Dockerfile.dev
@@ -1,5 +1,5 @@
 # init base for Visual Studio debugging
-FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-alpine AS base
+FROM mcr.microsoft.com/dotnet/core/aspnet:3.1.7-alpine AS base
 WORKDIR /app
 EXPOSE 80