diff --git a/Sources/CoreStore+CustomDebugStringConvertible.swift b/Sources/CoreStore+CustomDebugStringConvertible.swift
index a6fab80..d1e1564 100644
--- a/Sources/CoreStore+CustomDebugStringConvertible.swift
+++ b/Sources/CoreStore+CustomDebugStringConvertible.swift
@@ -1160,7 +1160,7 @@ extension NSEntityDescription: CoreStoreDebugStringConvertible {
             
             info.append(("compoundIndexes", self.compoundIndexes))
         }
-        if #available(macOS 10.11, *) {
+        if #available(macOS 10.11, iOS 9.0, *) {
             
             info.append(("uniquenessConstraints", self.uniquenessConstraints))
         }
diff --git a/Sources/CoreStoreSchema.swift b/Sources/CoreStoreSchema.swift
index d2c1f28..7e78ced 100644
--- a/Sources/CoreStoreSchema.swift
+++ b/Sources/CoreStoreSchema.swift
@@ -452,7 +452,7 @@ public final class CoreStoreSchema: DynamicSchema {
         }
         for (entity, entityDescription) in entityDescriptionsByEntity {
 
-            if #available(macOS 10.11, *) {
+            if #available(macOS 10.11, iOS 9.0, *) {
                 
                 let uniqueConstraints = entity.uniqueConstraints.filter({ !$0.isEmpty })
                 if !uniqueConstraints.isEmpty {
diff --git a/Sources/DataStack+Migration.swift b/Sources/DataStack+Migration.swift
index 8ffe463..1250cc3 100644
--- a/Sources/DataStack+Migration.swift
+++ b/Sources/DataStack+Migration.swift
@@ -614,7 +614,7 @@ extension DataStack {
         }
         let fileManager = FileManager.default
         let systemTemporaryDirectoryURL: URL
-        if #available(macOS 10.12, *) {
+        if #available(macOS 10.12, iOS 10.0, *) {
 
             systemTemporaryDirectoryURL = fileManager.temporaryDirectory
         }