diff --git a/test/Dockerfile.distro b/test/Dockerfile.distro
index a500d1c90f..138fa27760 100644
--- a/test/Dockerfile.distro
+++ b/test/Dockerfile.distro
@@ -60,7 +60,7 @@ RUN install-tool deno 2.5.6
 RUN install-tool devbox 0.16.0
 
 # renovate: datasource=dotnet packageName=dotnet-sdk
-RUN install-tool dotnet 9.0.308
+RUN install-tool dotnet 10.0.100
 
 # renovate: datasource=github-releases packageName=containerbase/flutter-prebuild
 RUN install-tool flutter 3.35.7
diff --git a/test/dotnet/Dockerfile b/test/dotnet/Dockerfile
index 5b4d6fadff..a75c534bc1 100644
--- a/test/dotnet/Dockerfile
+++ b/test/dotnet/Dockerfile
@@ -91,7 +91,7 @@ RUN set -ex;  \
     dotnet build
 
 #--------------------------------------
-# test: dotnet 8.0 (non-root, LTS)
+# test: dotnet 10.0 (non-root, LTS)
 #--------------------------------------
 FROM build AS testc
 
@@ -101,8 +101,8 @@ RUN set -ex; \
 
 # only patch updates
 # renovate: datasource=dotnet packageName=dotnet-sdk
-RUN install-tool dotnet 8.0.416
-RUN set -ex; dotnet --version | grep 8.0.
+RUN install-tool dotnet 10.0.100
+RUN set -ex; dotnet --version | grep 10.0.
 
 RUN set -ex; \
     dotnet restore --use-lock-file
@@ -119,8 +119,8 @@ FROM build AS testd
 
 # only patch updates
 # renovate: datasource=dotnet packageName=dotnet-sdk
-RUN install-tool dotnet 9.0.308
-RUN set -ex; dotnet --version | grep 9.0.
+RUN install-tool dotnet 10.0.100
+RUN set -ex; dotnet --version | grep 10.0.
 
 RUN set -ex; \
     dotnet restore --use-lock-file
diff --git a/test/dotnet/Dockerfile.arm64 b/test/dotnet/Dockerfile.arm64
index 99e880f144..b7113c12b7 100644
--- a/test/dotnet/Dockerfile.arm64
+++ b/test/dotnet/Dockerfile.arm64
@@ -38,7 +38,7 @@ ARG CONTAINERBASE_LOG_LEVEL
 FROM base AS test-dotnet
 
 # renovate: datasource=dotnet packageName=dotnet-sdk
-RUN install-tool dotnet 9.0.308
+RUN install-tool dotnet 10.0.100
 
 #--------------------------------------
 # Image: final