diff --git a/build/docker/ubuntu-focal/Dockerfile b/build/docker/ubuntu-focal/Dockerfile
index e0244fc..18234bf 100644
--- a/build/docker/ubuntu-focal/Dockerfile
+++ b/build/docker/ubuntu-focal/Dockerfile
@@ -137,7 +137,7 @@
       dart=$DART_VERSION
 ENV PATH /usr/lib/dart/bin:$PATH
 
-# Because Ubuntu 20.04 reaches end of life in April [actually May] 2025, Microsoft has decided not to support .NET 9 on Ubuntu 20.04.
+# Because Ubuntu 20.04 turned EOL in April/May 2025, Microsoft does not support .NET 9 or higher on that platform
 RUN apt-get install -y --no-install-recommends \
       `# dotnet core dependencies` \
       dotnet-sdk-8.0 \
diff --git a/build/docker/ubuntu-jammy/Dockerfile b/build/docker/ubuntu-jammy/Dockerfile
index 8f66a56..5e83948 100644
--- a/build/docker/ubuntu-jammy/Dockerfile
+++ b/build/docker/ubuntu-jammy/Dockerfile
@@ -133,10 +133,10 @@
 RUN add-apt-repository ppa:dotnet/backports
 RUN apt-get install -y --no-install-recommends \
   `# dotnet core dependencies` \
-  dotnet-sdk-9.0 \
-  dotnet-runtime-9.0 \
-  aspnetcore-runtime-9.0 \
-  dotnet-apphost-pack-9.0
+  dotnet-sdk-10.0 \
+  dotnet-runtime-10.0 \
+  aspnetcore-runtime-10.0 \
+  dotnet-apphost-pack-10.0
 
 # Erlang dependencies
 ARG ERLANG_OTP_VERSION=25.3.2.9
diff --git a/build/docker/ubuntu-noble/Dockerfile b/build/docker/ubuntu-noble/Dockerfile
index 374b4b5..86617e0 100644
--- a/build/docker/ubuntu-noble/Dockerfile
+++ b/build/docker/ubuntu-noble/Dockerfile
@@ -132,10 +132,10 @@
 RUN add-apt-repository ppa:dotnet/backports
 RUN apt-get install -y --no-install-recommends \
   `# dotnet core dependencies` \
-  dotnet-sdk-9.0 \
-  dotnet-runtime-9.0 \
-  aspnetcore-runtime-9.0 \
-  dotnet-apphost-pack-9.0
+  dotnet-sdk-10.0 \
+  dotnet-runtime-10.0 \
+  aspnetcore-runtime-10.0 \
+  dotnet-apphost-pack-10.0
 
 # Erlang dependencies
 ARG ERLANG_OTP_VERSION=25.3.2.9