diff --git a/changelog.md b/changelog.md
index 89940cb..cffc343 100644
--- a/changelog.md
+++ b/changelog.md
@@ -2,11 +2,12 @@
 
 ---
 
-## [2.0.4] 2025-01-17
+## [2.0.4 - 2.0.5] 2025-01-17
 
 ### Changed
 
 - Previously published version updated default runtimes without doing so as a breaking change; reverted to previous preferred order
+- Retired `dotnet6` (deprecated 2024-12-20)
 
 ---
 
diff --git a/cjs/index.js b/cjs/index.js
index 2ec15ac..1052fc9 100644
--- a/cjs/index.js
+++ b/cjs/index.js
@@ -21,7 +21,6 @@ let runtimes = {
     'java8.al2',
   ],
   dotnet: [
-    'dotnet6',
     'dotnet8',
   ],
   ruby: [
@@ -126,13 +125,6 @@ let runtimeVersions = {
     patch:    null,
     wildcard: '8.*',
   },
-  'dotnet6': {
-    runtime:  'dotnet',
-    major:    '6',
-    minor:    null,
-    patch:    null,
-    wildcard: '6.*',
-  },
   'ruby3.3': {
     runtime:  'ruby',
     major:    '3',
@@ -227,6 +219,7 @@ let retiredRuntimes = {
   ],
   dotnet: [
     'dotnet7',
+    'dotnet6',
     'dotnet5.0',
     'dotnetcore3.1',
     'dotnetcore2.1',