diff --git a/services/Archival/FilterLists.Archival.Api/Dockerfile b/services/Archival/FilterLists.Archival.Api/Dockerfile
index 4ef23e7b2..8ba6e8627 100644
--- a/services/Archival/FilterLists.Archival.Api/Dockerfile
+++ b/services/Archival/FilterLists.Archival.Api/Dockerfile
@@ -5,6 +5,7 @@ WORKDIR /app
 
 # init build
 FROM mcr.microsoft.com/dotnet/core/sdk:3.1.401-alpine AS build
+ENV DOTNET_CLI_TELEMETRY_OPTOUT=true
 
 # restore API
 WORKDIR /app
diff --git a/services/Archival/FilterLists.Archival.Api/Dockerfile.dev b/services/Archival/FilterLists.Archival.Api/Dockerfile.dev
index c56a3a8aa..c44c08048 100644
--- a/services/Archival/FilterLists.Archival.Api/Dockerfile.dev
+++ b/services/Archival/FilterLists.Archival.Api/Dockerfile.dev
@@ -4,6 +4,7 @@ WORKDIR /app
 
 # init build
 FROM mcr.microsoft.com/dotnet/core/sdk:3.1.401-alpine AS build
+ENV DOTNET_CLI_TELEMETRY_OPTOUT=true
 
 # restore API
 WORKDIR /app
diff --git a/services/Directory/FilterLists.Directory.Api/Dockerfile b/services/Directory/FilterLists.Directory.Api/Dockerfile
index 869349af1..ec5c7f8a7 100644
--- a/services/Directory/FilterLists.Directory.Api/Dockerfile
+++ b/services/Directory/FilterLists.Directory.Api/Dockerfile
@@ -6,6 +6,7 @@ EXPOSE 80
 
 # init build
 FROM mcr.microsoft.com/dotnet/core/sdk:3.1.401-alpine AS build
+ENV DOTNET_CLI_TELEMETRY_OPTOUT=true
 
 # restore API
 WORKDIR /app
diff --git a/services/Directory/FilterLists.Directory.Api/Dockerfile.dev b/services/Directory/FilterLists.Directory.Api/Dockerfile.dev
index 5f544c4ab..ccfa99795 100644
--- a/services/Directory/FilterLists.Directory.Api/Dockerfile.dev
+++ b/services/Directory/FilterLists.Directory.Api/Dockerfile.dev
@@ -5,6 +5,7 @@ EXPOSE 80
 
 # init build
 FROM mcr.microsoft.com/dotnet/core/sdk:3.1.401-alpine AS build
+ENV DOTNET_CLI_TELEMETRY_OPTOUT=true
 
 # restore API
 WORKDIR /app
diff --git a/services/Directory/FilterLists.Directory.Api/Dockerfile.migrate b/services/Directory/FilterLists.Directory.Api/Dockerfile.migrate
index 84d8da1da..76827e578 100644
--- a/services/Directory/FilterLists.Directory.Api/Dockerfile.migrate
+++ b/services/Directory/FilterLists.Directory.Api/Dockerfile.migrate
@@ -1,5 +1,6 @@
 # init test-migrations
 FROM mcr.microsoft.com/dotnet/core/sdk:3.1.401-alpine AS test-migrations
+ENV DOTNET_CLI_TELEMETRY_OPTOUT=true
 ENTRYPOINT ["dotnet", "test", "--logger:trx"]
 
 # restore
diff --git a/services/Directory/azure-pipelines.migrate.yaml b/services/Directory/azure-pipelines.migrate.yaml
index 8fe76c396..010f99ecc 100644
--- a/services/Directory/azure-pipelines.migrate.yaml
+++ b/services/Directory/azure-pipelines.migrate.yaml
@@ -15,6 +15,7 @@ pool:
 variables:
   COMPOSE_DOCKER_CLI_BUILD: 1
   DOCKER_BUILDKIT: 1
+  DOTNET_CLI_TELEMETRY_OPTOUT: true
 
 steps:
   - checkout: none