diff --git a/build/docker/old/debian-stretch/Dockerfile b/build/docker/old/debian-stretch/Dockerfile
index 25237ca..f584bba 100644
--- a/build/docker/old/debian-stretch/Dockerfile
+++ b/build/docker/old/debian-stretch/Dockerfile
@@ -102,10 +102,10 @@
 # project isn't ready for this quite yet:
 # RUN apt-get install -y --no-install-recommends \
 # `# dotnet core dependencies` \
-#       dotnet-sdk-7.0 \
-#       dotnet-runtime-7.0 \
-#       aspnetcore-runtime-7.0 \
-#       dotnet-apphost-pack-7.0
+#       dotnet-sdk-8.0 \
+#       dotnet-runtime-8.0 \
+#       aspnetcore-runtime-8.0 \
+#       dotnet-apphost-pack-8.0
 
 RUN apt-get install -y --no-install-recommends \
 `# Erlang dependencies` \
diff --git a/build/docker/old/ubuntu-artful/Dockerfile b/build/docker/old/ubuntu-artful/Dockerfile
index 0391470..f94b700 100644
--- a/build/docker/old/ubuntu-artful/Dockerfile
+++ b/build/docker/old/ubuntu-artful/Dockerfile
@@ -120,10 +120,10 @@
 
 RUN apt-get install -y --no-install-recommends \
 `# dotnet core dependencies` \
-      dotnet-sdk-7.0 \
-      dotnet-runtime-7.0 \
-      aspnetcore-runtime-7.0 \
-      dotnet-apphost-pack-7.0
+      dotnet-sdk-8.0 \
+      dotnet-runtime-8.0 \
+      aspnetcore-runtime-8.0 \
+      dotnet-apphost-pack-8.0
 
 RUN apt-get install -y --no-install-recommends \
 `# Erlang dependencies` \
diff --git a/build/docker/old/ubuntu-disco/Dockerfile b/build/docker/old/ubuntu-disco/Dockerfile
index d2f397a..39642cf 100644
--- a/build/docker/old/ubuntu-disco/Dockerfile
+++ b/build/docker/old/ubuntu-disco/Dockerfile
@@ -126,10 +126,10 @@
 
 RUN apt-get install -y --no-install-recommends \
       `# dotnet core dependencies` \
-      dotnet-sdk-7.0 \
-      dotnet-runtime-7.0 \
-      aspnetcore-runtime-7.0 \
-      dotnet-apphost-pack-7.0
+      dotnet-sdk-8.0 \
+      dotnet-runtime-8.0 \
+      aspnetcore-runtime-8.0 \
+      dotnet-apphost-pack-8.0
 
 RUN apt-get install -y --no-install-recommends \
       `# Erlang dependencies` \
diff --git a/build/docker/old/ubuntu-xenial/Dockerfile b/build/docker/old/ubuntu-xenial/Dockerfile
index 37df80f..d9d87cc 100644
--- a/build/docker/old/ubuntu-xenial/Dockerfile
+++ b/build/docker/old/ubuntu-xenial/Dockerfile
@@ -115,10 +115,10 @@
 
 RUN apt-get install -y --no-install-recommends \
       `# dotnet core dependencies` \
-      dotnet-sdk-7.0 \
-      dotnet-runtime-7.0 \
-      aspnetcore-runtime-7.0 \
-      dotnet-apphost-pack-7.0
+      dotnet-sdk-8.0 \
+      dotnet-runtime-8.0 \
+      aspnetcore-runtime-8.0 \
+      dotnet-apphost-pack-8.0
 
 # Erlang dependencies
 ARG ERLANG_OTP_VERSION=20.3.8.9
diff --git a/build/docker/ubuntu-bionic/Dockerfile b/build/docker/ubuntu-bionic/Dockerfile
index 00c7de3..350921a 100644
--- a/build/docker/ubuntu-bionic/Dockerfile
+++ b/build/docker/ubuntu-bionic/Dockerfile
@@ -124,10 +124,10 @@
 
 RUN apt-get install -y --no-install-recommends \
       `# dotnet core dependencies` \
-      dotnet-sdk-7.0 \
-      dotnet-runtime-7.0 \
-      aspnetcore-runtime-7.0 \
-      dotnet-apphost-pack-7.0
+      dotnet-sdk-8.0 \
+      dotnet-runtime-8.0 \
+      aspnetcore-runtime-8.0 \
+      dotnet-apphost-pack-8.0
 
 # Erlang dependencies
 ARG ERLANG_OTP_VERSION=23.3.4.11
diff --git a/build/docker/ubuntu-focal/Dockerfile b/build/docker/ubuntu-focal/Dockerfile
index 1039e45..416e806 100644
--- a/build/docker/ubuntu-focal/Dockerfile
+++ b/build/docker/ubuntu-focal/Dockerfile
@@ -125,10 +125,10 @@
 
 RUN apt-get install -y --no-install-recommends \
       `# dotnet core dependencies` \
-      dotnet-sdk-7.0 \
-      dotnet-runtime-7.0 \
-      aspnetcore-runtime-7.0 \
-      dotnet-apphost-pack-7.0
+      dotnet-sdk-8.0 \
+      dotnet-runtime-8.0 \
+      aspnetcore-runtime-8.0 \
+      dotnet-apphost-pack-8.0
 
 # Erlang dependencies
 ARG ERLANG_OTP_VERSION=23.3.4.11
diff --git a/build/docker/ubuntu-jammy/Dockerfile b/build/docker/ubuntu-jammy/Dockerfile
index d45070f..a10fea6 100644
--- a/build/docker/ubuntu-jammy/Dockerfile
+++ b/build/docker/ubuntu-jammy/Dockerfile
@@ -125,10 +125,10 @@
 
 RUN apt-get install -y --no-install-recommends \
   `# dotnet core dependencies` \
-  dotnet-sdk-7.0 \
-  dotnet-runtime-7.0 \
-  aspnetcore-runtime-7.0 \
-  dotnet-apphost-pack-7.0
+  dotnet-sdk-8.0 \
+  dotnet-runtime-8.0 \
+  aspnetcore-runtime-8.0 \
+  dotnet-apphost-pack-8.0
 
 # Erlang dependencies
 ARG ERLANG_OTP_VERSION=23.3.4.11