diff --git a/Dockerfile.arm b/Dockerfile.arm
index c1706fc74b..cf062f38af 100644
--- a/Dockerfile.arm
+++ b/Dockerfile.arm
@@ -1,4 +1,4 @@
-ARG DOTNET_VERSION=2.2
+ARG DOTNET_VERSION=3.0
 
 
 FROM microsoft/dotnet:${DOTNET_VERSION}-sdk-stretch-arm32v7 as builder