diff --git a/tests/sdk/Dockerfile b/tests/sdk/Dockerfile
index cc6a339..8584398 100644
--- a/tests/sdk/Dockerfile
+++ b/tests/sdk/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 ARG SDK=dotnet
-FROM --platform=$BUILDPLATFORM pulumi/pulumi-${SDK}:3.142.0-debian AS base
+FROM --platform=$BUILDPLATFORM pulumi/pulumi-${SDK}:3.143.0-debian AS base
 
 ARG TARGETOS
 ARG TARGETARCH