diff --git a/README.md b/README.md
index 094ce4d..282a304 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,15 @@ developed or significant changes are undertaken, those will be
 published in a series of 6.2.x releases before stabalizing in a 6.3.0
 release. Etc.
 
+## ChangeLog
+
+### 6.0.21
+
+* Now targets `netstandard2.0` for broader compatibility
+* A number of build and test improvements
+* /hattip @bernd5
+
+
 ## Cloning
 
 The build now includes a collection of schemas and resources that can
diff --git a/build.gradle b/build.gradle
index 7160b65..d632a34 100644
--- a/build.gradle
+++ b/build.gradle
@@ -123,8 +123,7 @@ tasks.register('dotnetBuild') {
 tasks.register("dotnetBuildXmlResolver") {
   dependsOn = ['make_data_csproj']
 
-  inputs.files fileTree(dir: "${projectDir}/XmlResolver")
-  outputs.file "${projectDir}/XmlResolver/bin/Release/net6.0/XmlResolver.dll"
+  inputs.files fileTree(dir: "${projectDir}/XmlResolver", excludes: ["bin/**", "obj/**"])
   outputs.file "${projectDir}/XmlResolver/bin/Release/XmlResolver.${resolverVersion}.nupkg"
 
   doLast {
@@ -145,8 +144,7 @@ tasks.register("dotnetBuildXmlResolver") {
 
 tasks.register("dotnetBuildXmlResolverData") {
   dependsOn = ['make_data_csproj', 'make_data_tests']
-  inputs.files fileTree(dir: "${projectDir}/XmlResolverData")
-  outputs.file "${projectDir}/XmlResolverData/bin/Release/net6.0/XmlResolver.dll"
+  inputs.files fileTree(dir: "${projectDir}/XmlResolverData", excludes: ["bin/**", "obj/**"])
   outputs.file "${projectDir}/XmlResolverData/bin/Release/XmlResolver.${resolverVersion}.nupkg"
 
   doLast {
diff --git a/gradle.properties b/gradle.properties
index 4d4821b..1f0d3f6 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1 +1 @@
-resolverVersion=6.0.20
+resolverVersion=6.0.21