diff --git a/res/META-INF/change-notes.html b/res/META-INF/change-notes.html
index 948aea9..e96dbbf 100644
--- a/res/META-INF/change-notes.html
+++ b/res/META-INF/change-notes.html
@@ -1,5 +1,7 @@
 0.2.1<br/>
 <ul>
+	<li>Fix some compatibility problems, bump minimum supported platform version to 173</li>
+	<li>Fix a critical bug in 0.2.0 (so 0.2.0 update is deleted)</li>
 </ul>
 0.2.0<br/>
 <ul>
diff --git a/res/META-INF/plugin.xml b/res/META-INF/plugin.xml
index 23f5d04..6d49b9a 100644
--- a/res/META-INF/plugin.xml
+++ b/res/META-INF/plugin.xml
@@ -1,7 +1,7 @@
 <idea-plugin>
 	<name>Pest</name>
 	<vendor email="ice1000kotlin@foxmail.com" url="https://ice1000.org">ice1000</vendor>
-	<idea-version since-build="162.0"/>
+	<idea-version since-build="173.0"/>
 
 	<depends>com.intellij.modules.lang</depends>
 	<depends optional="true" config-file="plugin-rust.xml">org.rust.lang</depends>
diff --git a/src/rs/pest/editing/pest-editing.kt b/src/rs/pest/editing/pest-editing.kt
index 53c1d4b..e7c13ce 100644
--- a/src/rs/pest/editing/pest-editing.kt
+++ b/src/rs/pest/editing/pest-editing.kt
@@ -33,7 +33,7 @@ import com.intellij.psi.impl.search.IndexPatternBuilder
 import com.intellij.psi.search.UsageSearchContext
 import com.intellij.psi.tree.IElementType
 import com.intellij.psi.tree.TokenSet
-import com.intellij.spellchecker.tokenizer.PsiIdentifierOwnerTokenizer
+import com.intellij.spellchecker.PsiIdentifierTokenizer
 import com.intellij.spellchecker.tokenizer.SpellcheckingStrategy
 import com.intellij.spellchecker.tokenizer.Tokenizer
 import rs.pest.*
@@ -144,7 +144,7 @@ class PestSpellCheckingStrategy : SpellcheckingStrategy() {
 	override fun getTokenizer(element: PsiElement): Tokenizer<*> = when (element) {
 		is PestIdentifier -> {
 			val parent = element.parent
-			if (parent is PestGrammarRule && parent.firstChild === element) PsiIdentifierOwnerTokenizer.INSTANCE
+			if (parent is PestGrammarRule && parent.firstChild === element) PsiIdentifierTokenizer()
 			else EMPTY_TOKENIZER
 		}
 		is PestString, is PestCharacter -> EMPTY_TOKENIZER
diff --git a/src/rs/pest/pest-highlight.kt b/src/rs/pest/pest-highlight.kt
index b35225a..388269e 100644
--- a/src/rs/pest/pest-highlight.kt
+++ b/src/rs/pest/pest-highlight.kt
@@ -27,7 +27,7 @@ object PestHighlighter : SyntaxHighlighter {
 	@JvmField val SILENT = TextAttributesKey.createTextAttributesKey("PEST_SILENT", DefaultLanguageHighlighterColors.FUNCTION_DECLARATION)
 	@JvmField val ATOMIC = TextAttributesKey.createTextAttributesKey("PEST_ATOMIC", DefaultLanguageHighlighterColors.LOCAL_VARIABLE)
 	@JvmField val COMPOUND_ATOMIC = TextAttributesKey.createTextAttributesKey("PEST_COMPOUND_ATOMIC", DefaultLanguageHighlighterColors.LOCAL_VARIABLE)
-	@JvmField val NON_ATOMIC = TextAttributesKey.createTextAttributesKey("PEST_NON_ATOMIC", DefaultLanguageHighlighterColors.REASSIGNED_LOCAL_VARIABLE)
+	@JvmField val NON_ATOMIC = TextAttributesKey.createTextAttributesKey("PEST_NON_ATOMIC", DefaultLanguageHighlighterColors.LOCAL_VARIABLE)
 	@JvmField val NUMBER = TextAttributesKey.createTextAttributesKey("PEST_NUMBER", DefaultLanguageHighlighterColors.NUMBER)
 	@JvmField val STRING = TextAttributesKey.createTextAttributesKey("PEST_STRING", DefaultLanguageHighlighterColors.STRING)
 	@JvmField val CHAR = TextAttributesKey.createTextAttributesKey("PEST_CHAR", DefaultLanguageHighlighterColors.STRING)