diff --git a/CHANGELOG.md b/CHANGELOG.md
index 47fd518..70f26b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [2.1.5] - 2026-09-19
+
+### Fixed
+
+- `New-PlasterManifest` and JSON conversion paths emitted a `$schema` URL
+  that returned HTTP 404; updated all schema call sites and examples to
+  use the valid schema URL
+  ([#478](https://github.com/PowerShellOrg/Plaster/pull/478),
+  closes [#477](https://github.com/PowerShellOrg/Plaster/issues/477))
+
 ## [2.1.4] - 2026-09-13
 
 ### Fixed
diff --git a/Plaster/Plaster.psd1 b/Plaster/Plaster.psd1
index ce36063..eb356c2 100644
--- a/Plaster/Plaster.psd1
+++ b/Plaster/Plaster.psd1
@@ -6,7 +6,7 @@
     GUID = 'cfce3c5e-402f-412a-a83a-7b7ee9832ff4'
 
     # Version number of this module.
-    ModuleVersion = '2.1.4'
+    ModuleVersion = '2.1.5'
 
     # Supported PSEditions
     CompatiblePSEditions = @('Desktop', 'Core')
diff --git a/Plaster/Private/New-JsonManifestStructure.ps1 b/Plaster/Private/New-JsonManifestStructure.ps1
index f66209c..a7a5342 100644
--- a/Plaster/Private/New-JsonManifestStructure.ps1
+++ b/Plaster/Private/New-JsonManifestStructure.ps1
@@ -28,7 +28,7 @@ function New-JsonManifestStructure {
     )
 
     $manifest = [ordered]@{
-        '$schema' = 'https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json'
+        '$schema' = 'https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json'
         'schemaVersion' = '2.0'
         'metadata' = [ordered]@{
             'name' = $TemplateName
diff --git a/Plaster/Public/ConvertTo-JsonManifest.ps1 b/Plaster/Public/ConvertTo-JsonManifest.ps1
index 7aa90b7..7a4d7f4 100644
--- a/Plaster/Public/ConvertTo-JsonManifest.ps1
+++ b/Plaster/Public/ConvertTo-JsonManifest.ps1
@@ -53,7 +53,7 @@ function ConvertTo-JsonManifest {
     process {
         try {
             $jsonObject = [ordered]@{
-                '$schema' = 'https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json'
+                '$schema' = 'https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json'
                 'schemaVersion' = '2.0'
             }
 
diff --git a/Plaster/Public/New-PlasterManifest.ps1 b/Plaster/Public/New-PlasterManifest.ps1
index 784c303..34bcec8 100644
--- a/Plaster/Public/New-PlasterManifest.ps1
+++ b/Plaster/Public/New-PlasterManifest.ps1
@@ -96,7 +96,7 @@ function New-PlasterManifest {
         if ($Format -eq 'JSON') {
             # Create JSON manifest
             $jsonManifest = [ordered]@{
-                '$schema'       = 'https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json'
+                '$schema'       = 'https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json'
                 'schemaVersion' = '2.0'
                 'metadata'      = [ordered]@{
                     'name'         = $TemplateName
diff --git a/Plaster/Schema/plaster-manifest-v2.json b/Plaster/Schema/plaster-manifest-v2.json
index 49af49c..f158cfc 100644
--- a/Plaster/Schema/plaster-manifest-v2.json
+++ b/Plaster/Schema/plaster-manifest-v2.json
@@ -1,6 +1,6 @@
 {
     "$schema": "http://json-schema.org/draft-07/schema#",
-    "$id": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$id": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "title": "Plaster Template Manifest v2.0",
     "description": "JSON schema for Plaster 2.0 template manifests",
     "type": "object",
diff --git a/README.md b/README.md
index b9bfa03..b6c6e77 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ code plasterManifest.xml
 ### JSON Manifest Example
 ```json
 {
-  "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json",
+  "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
   "schemaVersion": "2.0",
   "metadata": {
     "name": "MyTemplate",
diff --git a/demos/templates/02-json-greeter/plasterManifest.json b/demos/templates/02-json-greeter/plasterManifest.json
index 8cb9d61..256ecdd 100644
--- a/demos/templates/02-json-greeter/plasterManifest.json
+++ b/demos/templates/02-json-greeter/plasterManifest.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json",
+  "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
   "schemaVersion": "2.0",
   "metadata": {
     "name": "JsonGreeter",
diff --git a/demos/templates/03-json-module/plasterManifest.json b/demos/templates/03-json-module/plasterManifest.json
index d374624..9265759 100644
--- a/demos/templates/03-json-module/plasterManifest.json
+++ b/demos/templates/03-json-module/plasterManifest.json
@@ -1,5 +1,5 @@
 {
-  "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json",
+  "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
   "schemaVersion": "2.0",
   "metadata": {
     "name": "AcmeModule",
diff --git a/examples/NewModule/plasterManifest.json b/examples/NewModule/plasterManifest.json
index ca2239a..f7265a0 100644
--- a/examples/NewModule/plasterManifest.json
+++ b/examples/NewModule/plasterManifest.json
@@ -1,5 +1,5 @@
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "id": "dcd95744-8abc-4ecb-a439-bf2cd37821bb",
diff --git a/examples/NewPowerShellScript/plasterManifest.json b/examples/NewPowerShellScript/plasterManifest.json
index 86f3bc0..876b2d7 100644
--- a/examples/NewPowerShellScript/plasterManifest.json
+++ b/examples/NewPowerShellScript/plasterManifest.json
@@ -1,5 +1,5 @@
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShell/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "id": "635046f0-a59b-46a0-b6b3-892084707467",
diff --git a/examples/TemplateModule/TemplateOne/plasterManifest.json b/examples/TemplateModule/TemplateOne/plasterManifest.json
index e304dc9..92598eb 100644
--- a/examples/TemplateModule/TemplateOne/plasterManifest.json
+++ b/examples/TemplateModule/TemplateOne/plasterManifest.json
@@ -1,5 +1,5 @@
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShell/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "id": "635046f0-a59b-46a0-b6b3-892084707467",
diff --git a/examples/TemplateModule/TemplateTwo/plasterManifest.json b/examples/TemplateModule/TemplateTwo/plasterManifest.json
index fca3af2..c1be1ea 100644
--- a/examples/TemplateModule/TemplateTwo/plasterManifest.json
+++ b/examples/TemplateModule/TemplateTwo/plasterManifest.json
@@ -1,5 +1,5 @@
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShell/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "id": "76a18e25-3c2f-4266-9a6f-64cdef44de94",
diff --git a/examples/plasterManifest-validatePattern.json b/examples/plasterManifest-validatePattern.json
index 849e082..f7265a0 100644
--- a/examples/plasterManifest-validatePattern.json
+++ b/examples/plasterManifest-validatePattern.json
@@ -1,5 +1,5 @@
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShell/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "id": "dcd95744-8abc-4ecb-a439-bf2cd37821bb",
diff --git a/examples/plasterManifest.json b/examples/plasterManifest.json
index 65dd8eb..b61b588 100644
--- a/examples/plasterManifest.json
+++ b/examples/plasterManifest.json
@@ -1,5 +1,5 @@
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShell/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "id": "38bd80d9-3a47-4916-9220-bed383d90876",
diff --git a/examples/plasterManifest_fr-FR.json b/examples/plasterManifest_fr-FR.json
index bb89b65..ab39284 100644
--- a/examples/plasterManifest_fr-FR.json
+++ b/examples/plasterManifest_fr-FR.json
@@ -1,5 +1,5 @@
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShell/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "id": "38bd80d9-3a47-4916-9220-bed383d90876",
diff --git a/tests/ConditionEval.Tests.ps1 b/tests/ConditionEval.Tests.ps1
index 819006c..20cb5ce 100644
--- a/tests/ConditionEval.Tests.ps1
+++ b/tests/ConditionEval.Tests.ps1
@@ -151,7 +151,7 @@ Describe 'Condition Attribute Evaluation Tests' {
 
             @'
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "name": "TemplateName",
@@ -193,7 +193,7 @@ Describe 'Condition Attribute Evaluation Tests' {
 
             @'
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "name": "TemplateName",
@@ -242,7 +242,7 @@ Describe 'Condition Attribute Evaluation Tests' {
 
             @'
 {
-    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/v2/schema/plaster-manifest-v2.json",
+    "$schema": "https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json",
     "schemaVersion": "2.0",
     "metadata": {
         "name": "TemplateName",
diff --git a/tests/ConvertTo-JsonManifest.Tests.ps1 b/tests/ConvertTo-JsonManifest.Tests.ps1
index 85d02e2..43fa787 100644
--- a/tests/ConvertTo-JsonManifest.Tests.ps1
+++ b/tests/ConvertTo-JsonManifest.Tests.ps1
@@ -53,7 +53,7 @@ Describe 'ConvertTo-JsonManifest' {
 
         It 'Includes the $schema and schemaVersion fields' {
             $json = ConvertTo-JsonManifest -XmlManifest (New-XmlManifest) | ConvertFrom-Json
-            $json.'$schema' | Should -Not -BeNullOrEmpty
+            $json.'$schema' | Should -Be 'https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json'
             $json.schemaVersion | Should -Be '2.0'
         }
 
diff --git a/tests/New-PlasterManifest.Tests.ps1 b/tests/New-PlasterManifest.Tests.ps1
index 391300c..4180f92 100644
--- a/tests/New-PlasterManifest.Tests.ps1
+++ b/tests/New-PlasterManifest.Tests.ps1
@@ -239,6 +239,7 @@ Describe 'New-PlasterManifest JSON Format Tests' {
 
             Test-Path $PlasterManifestPath | Should -Be $true
             $content = Get-Content $PlasterManifestPath -Raw | ConvertFrom-Json
+            $content.'$schema' | Should -Be 'https://raw.githubusercontent.com/PowerShellOrg/Plaster/main/Plaster/Schema/plaster-manifest-v2.json'
             $content.schemaVersion | Should -Be '2.0'
             $content.metadata.name | Should -Be 'JsonTemplate'
             $content.metadata.id | Should -Be '1a1b0933-78b2-4a3e-bf48-492591e69521'