diff --git a/Package.swift b/Package.swift
index 56463cf..644e7d0 100644
--- a/Package.swift
+++ b/Package.swift
@@ -43,6 +43,7 @@ let defaultSwiftSettings: [SwiftSetting] = [
   .swiftLanguageMode(.v6),
   .enableUpcomingFeature("ExistentialAny"),
   .enableUpcomingFeature("InternalImportsByDefault"),
+  .enableUpcomingFeature("MemberImportVisibility"),
 ]
 
 let targets: [Target] = [
diff --git a/Sources/protoc-gen-grpc-swift/Options.swift b/Sources/protoc-gen-grpc-swift/Options.swift
index aeb59c3..05bf131 100644
--- a/Sources/protoc-gen-grpc-swift/Options.swift
+++ b/Sources/protoc-gen-grpc-swift/Options.swift
@@ -88,14 +88,14 @@ struct GeneratorOptions {
         }
 
       case "Server":
-        if let value = Bool(pair.value) {
+        if let value = Bool(pair.value.lowercased()) {
           self.generateServer = value
         } else {
           throw GenerationError.invalidParameterValue(name: pair.key, value: pair.value)
         }
 
       case "Client":
-        if let value = Bool(pair.value) {
+        if let value = Bool(pair.value.lowercased()) {
           self.generateClient = value
         } else {
           throw GenerationError.invalidParameterValue(name: pair.key, value: pair.value)
@@ -142,14 +142,14 @@ struct GeneratorOptions {
         }
 
       case "ReflectionData":
-        if let value = Bool(pair.value) {
+        if let value = Bool(pair.value.lowercased()) {
           self.generateReflectionData = value
         } else {
           throw GenerationError.invalidParameterValue(name: pair.key, value: pair.value)
         }
 
       case "UseAccessLevelOnImports":
-        if let value = Bool(pair.value) {
+        if let value = Bool(pair.value.lowercased()) {
           self.useAccessLevelOnImports = value
         } else {
           throw GenerationError.invalidParameterValue(name: pair.key, value: pair.value)