diff --git a/compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/FirElementSerializer.kt b/compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/FirElementSerializer.kt
index 10f3786fa6b..48b55450dbf 100644
--- a/compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/FirElementSerializer.kt
+++ b/compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization/FirElementSerializer.kt
@@ -837,7 +837,7 @@ class FirElementSerializer private constructor(
     private fun MutableVersionRequirementTable.serializeVersionRequirements(annotations: List<FirAnnotationCall>): List<Int> =
         annotations
             .filter {
-                it.toAnnotationClassId().asSingleFqName() == RequireKotlinConstants.FQ_NAME
+                it.toAnnotationClassId()?.asSingleFqName() == RequireKotlinConstants.FQ_NAME
             }
             .mapNotNull(::serializeVersionRequirementFromRequireKotlin)
             .map(::get)
diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/declarations/FirAnnotationUtils.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/declarations/FirAnnotationUtils.kt
index 38901d88778..8ba3a9617d9 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/declarations/FirAnnotationUtils.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/declarations/FirAnnotationUtils.kt
@@ -26,14 +26,15 @@ private val RETENTION_CLASS_ID = ClassId.fromString("kotlin/annotation/Retention
 private val TARGET_CLASS_ID = ClassId.fromString("kotlin/annotation/Target")
 private val JVM_FIELD_CLASS_ID = ClassId.fromString("kotlin/jvm/JvmField")
 
-private fun FirAnnotationCall.toAnnotationLookupTag(): ConeClassLikeLookupTag =
-    (annotationTypeRef.coneType as ConeClassLikeType).lookupTag
+private fun FirAnnotationCall.toAnnotationLookupTag(): ConeClassLikeLookupTag? =
+    // this cast fails when we have generic-typed annotations @T
+    (annotationTypeRef.coneType as? ConeClassLikeType)?.lookupTag
 
-fun FirAnnotationCall.toAnnotationClassId(): ClassId =
-    toAnnotationLookupTag().classId
+fun FirAnnotationCall.toAnnotationClassId(): ClassId? =
+    toAnnotationLookupTag()?.classId
 
 private fun FirAnnotationCall.toAnnotationClass(session: FirSession): FirRegularClass? =
-    toAnnotationLookupTag().toSymbol(session)?.fir as? FirRegularClass
+    toAnnotationLookupTag()?.toSymbol(session)?.fir as? FirRegularClass
 
 // TODO: this is temporary solution, we need something better
 private val FirExpression.callableNameOfMetaAnnotationArgument: Name?
diff --git a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/renderer/FirAnnotationsIdeRenderer.kt b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/renderer/FirAnnotationsIdeRenderer.kt
index c8142d3a64a..4c315380f7b 100644
--- a/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/renderer/FirAnnotationsIdeRenderer.kt
+++ b/idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/renderer/FirAnnotationsIdeRenderer.kt
@@ -28,7 +28,7 @@ internal fun StringBuilder.renderAnnotations(
 }
 
 private fun FirAnnotationCall.isParameterName(): Boolean {
-    return toAnnotationClassId().asSingleFqName() == StandardNames.FqNames.parameterName
+    return toAnnotationClassId()?.asSingleFqName() == StandardNames.FqNames.parameterName
 }
 
 private fun renderAnnotation(annotation: FirAnnotationCall, coneTypeIdeRenderer: ConeTypeIdeRenderer, session: FirSession): String {