diff --git a/src/Umbraco.Core/Cache/AppCacheExtensions.cs b/src/Umbraco.Core/Cache/AppCacheExtensions.cs
index 286b6bd54d..a4edf6479e 100644
--- a/src/Umbraco.Core/Cache/AppCacheExtensions.cs
+++ b/src/Umbraco.Core/Cache/AppCacheExtensions.cs
@@ -19,7 +19,7 @@ namespace Umbraco.Core.Cache
             CacheItemRemovedCallback removedCallback = null,
             string[] dependentFiles = null)
         {
-            var result = provider.Get(cacheKey, () => getCacheItem(), timeout, isSliding, priority, dependentFiles);
+            var result = provider.Get(cacheKey, () => getCacheItem(), timeout, isSliding, dependentFiles);
             return result == null ? default(T) : result.TryConvertTo<T>().Result;
         }
 
@@ -32,7 +32,7 @@ namespace Umbraco.Core.Cache
             CacheItemRemovedCallback removedCallback = null,
             string[] dependentFiles = null)
         {
-            provider.Insert(cacheKey, () => getCacheItem(), timeout, isSliding, priority, dependentFiles);
+            provider.Insert(cacheKey, () => getCacheItem(), timeout, isSliding, dependentFiles);
         }
 
         public static IEnumerable<T> GetCacheItemsByKeySearch<T>(this IAppCache provider, string keyStartsWith)
diff --git a/src/Umbraco.Core/Cache/DeepCloneAppCache.cs b/src/Umbraco.Core/Cache/DeepCloneAppCache.cs
index a934f32dbf..29d147ba57 100644
--- a/src/Umbraco.Core/Cache/DeepCloneAppCache.cs
+++ b/src/Umbraco.Core/Cache/DeepCloneAppCache.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Web.Caching;
 using Umbraco.Core.Models;
 using Umbraco.Core.Models.Entities;
 
@@ -67,7 +66,7 @@ namespace Umbraco.Core.Cache
         }
 
         /// <inheritdoc />
-        public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, string[] dependentFiles = null)
+        public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, string[] dependentFiles = null)
         {
             var cached = InnerCache.Get(key, () =>
             {
@@ -77,14 +76,14 @@ namespace Umbraco.Core.Cache
                 return value == null ? null : CheckCloneableAndTracksChanges(value); 
 
                 // clone / reset to go into the cache
-            }, timeout, isSliding, priority, dependentFiles);
+            }, timeout, isSliding, dependentFiles);
 
             // clone / reset to go into the cache
             return CheckCloneableAndTracksChanges(cached);
         }
 
         /// <inheritdoc />
-        public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, string[] dependentFiles = null)
+        public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false, string[] dependentFiles = null)
         {
             InnerCache.Insert(key, () =>
             {
@@ -92,7 +91,7 @@ namespace Umbraco.Core.Cache
                 var value = result.Value; // force evaluation now - this may throw if cacheItem throws, and then nothing goes into cache
                 // do not store null values (backward compat), clone / reset to go into the cache
                 return value == null ? null : CheckCloneableAndTracksChanges(value);
-            }, timeout, isSliding, priority, dependentFiles);
+            }, timeout, isSliding, dependentFiles);
         }
 
         /// <inheritdoc />
diff --git a/src/Umbraco.Core/Cache/IAppPolicyCache.cs b/src/Umbraco.Core/Cache/IAppPolicyCache.cs
index 6b09037fa1..9746e80804 100644
--- a/src/Umbraco.Core/Cache/IAppPolicyCache.cs
+++ b/src/Umbraco.Core/Cache/IAppPolicyCache.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Web.Caching;
 
 namespace Umbraco.Core.Cache
 {
@@ -17,7 +16,6 @@ namespace Umbraco.Core.Cache
         /// <param name="factory">A factory function that can create the item.</param>
         /// <param name="timeout">An optional cache timeout.</param>
         /// <param name="isSliding">An optional value indicating whether the cache timeout is sliding (default is false).</param>
-        /// <param name="priority">An optional cache priority (default is Normal).</param>
         /// <param name="dependentFiles">Files the cache entry depends on.</param>
         /// <returns>The item.</returns>
         object Get(
@@ -25,7 +23,6 @@ namespace Umbraco.Core.Cache
             Func<object> factory,
             TimeSpan? timeout,
             bool isSliding = false,
-            CacheItemPriority priority = CacheItemPriority.Normal,
             string[] dependentFiles = null);
 
         /// <summary>
@@ -35,14 +32,12 @@ namespace Umbraco.Core.Cache
         /// <param name="factory">A factory function that can create the item.</param>
         /// <param name="timeout">An optional cache timeout.</param>
         /// <param name="isSliding">An optional value indicating whether the cache timeout is sliding (default is false).</param>
-        /// <param name="priority">An optional cache priority (default is Normal).</param>
         /// <param name="dependentFiles">Files the cache entry depends on.</param>
         void Insert(
             string key,
             Func<object> factory,
             TimeSpan? timeout = null,
             bool isSliding = false,
-            CacheItemPriority priority = CacheItemPriority.Normal,
             string[] dependentFiles = null);
     }
 }
diff --git a/src/Umbraco.Core/Cache/NoAppCache.cs b/src/Umbraco.Core/Cache/NoAppCache.cs
index 336948bc83..24c51c935a 100644
--- a/src/Umbraco.Core/Cache/NoAppCache.cs
+++ b/src/Umbraco.Core/Cache/NoAppCache.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Web.Caching;
 
 namespace Umbraco.Core.Cache
 {
@@ -42,13 +41,13 @@ namespace Umbraco.Core.Cache
         }
 
         /// <inheritdoc />
-        public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, string[] dependentFiles = null)
+        public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, string[] dependentFiles = null)
         {
             return factory();
         }
 
         /// <inheritdoc />
-        public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, string[] dependentFiles = null)
+        public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false, string[] dependentFiles = null)
         { }
 
         /// <inheritdoc />
diff --git a/src/Umbraco.Core/Cache/ObjectCacheAppCache.cs b/src/Umbraco.Core/Cache/ObjectCacheAppCache.cs
index 2701313423..016c5c3083 100644
--- a/src/Umbraco.Core/Cache/ObjectCacheAppCache.cs
+++ b/src/Umbraco.Core/Cache/ObjectCacheAppCache.cs
@@ -103,7 +103,7 @@ namespace Umbraco.Core.Cache
         }
 
         /// <inheritdoc />
-        public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, string[] dependentFiles = null)
+        public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, string[] dependentFiles = null)
         {
             // see notes in HttpRuntimeAppCache
 
@@ -131,7 +131,7 @@ namespace Umbraco.Core.Cache
         }
 
         /// <inheritdoc />
-        public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, string[] dependentFiles = null)
+        public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false, string[] dependentFiles = null)
         {
             // NOTE - here also we must insert a Lazy<object> but we can evaluate it right now
             // and make sure we don't store a null value.
diff --git a/src/Umbraco.Core/Cache/WebCachingAppCache.cs b/src/Umbraco.Core/Cache/WebCachingAppCache.cs
index da3b5def1e..8711a025e0 100644
--- a/src/Umbraco.Core/Cache/WebCachingAppCache.cs
+++ b/src/Umbraco.Core/Cache/WebCachingAppCache.cs
@@ -35,25 +35,25 @@ namespace Umbraco.Core.Cache
         }
 
         /// <inheritdoc />
-        public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, string[] dependentFiles = null)
+        public object Get(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, string[] dependentFiles = null)
         {
             CacheDependency dependency = null;
             if (dependentFiles != null && dependentFiles.Any())
             {
                 dependency = new CacheDependency(dependentFiles);
             }
-            return GetImpl(key, factory, timeout, isSliding, priority, dependency);
+            return GetImpl(key, factory, timeout, isSliding, dependency);
         }
 
         /// <inheritdoc />
-        public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, string[] dependentFiles = null)
+        public void Insert(string key, Func<object> factory, TimeSpan? timeout = null, bool isSliding = false, string[] dependentFiles = null)
         {
             CacheDependency dependency = null;
             if (dependentFiles != null && dependentFiles.Any())
             {
                 dependency = new CacheDependency(dependentFiles);
             }
-            InsertImpl(key, factory, timeout, isSliding, priority, dependency);
+            InsertImpl(key, factory, timeout, isSliding, dependency);
         }
 
         #region Dictionary
@@ -103,7 +103,7 @@ namespace Umbraco.Core.Cache
 
         #endregion
 
-        private object GetImpl(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, CacheDependency dependency = null)
+        private object GetImpl(string key, Func<object> factory, TimeSpan? timeout, bool isSliding = false, CacheDependency dependency = null)
         {
             key = GetCacheKey(key);
 
@@ -164,7 +164,7 @@ namespace Umbraco.Core.Cache
 
                     lck.UpgradeToWriteLock();
                     //NOTE: 'Insert' on System.Web.Caching.Cache actually does an add or update!
-                    _cache.Insert(key, result, dependency, absolute, sliding, priority, null);
+                    _cache.Insert(key, result, dependency, absolute, sliding, CacheItemPriority.Normal, null);
                 }
             }
 
@@ -180,7 +180,7 @@ namespace Umbraco.Core.Cache
             return value;
         }
 
-        private void InsertImpl(string cacheKey, Func<object> getCacheItem, TimeSpan? timeout = null, bool isSliding = false, CacheItemPriority priority = CacheItemPriority.Normal, CacheDependency dependency = null)
+        private void InsertImpl(string cacheKey, Func<object> getCacheItem, TimeSpan? timeout = null, bool isSliding = false, CacheDependency dependency = null)
         {
             // NOTE - here also we must insert a Lazy<object> but we can evaluate it right now
             // and make sure we don't store a null value.
@@ -198,7 +198,7 @@ namespace Umbraco.Core.Cache
             {
                 _locker.EnterWriteLock();
                 //NOTE: 'Insert' on System.Web.Caching.Cache actually does an add or update!
-                _cache.Insert(cacheKey, result, dependency, absolute, sliding, priority, null);
+                _cache.Insert(cacheKey, result, dependency, absolute, sliding, CacheItemPriority.Normal, null);
             }
             finally
             {
diff --git a/src/Umbraco.Tests/Cache/DefaultCachePolicyTests.cs b/src/Umbraco.Tests/Cache/DefaultCachePolicyTests.cs
index ca91c63621..5f9e94a4fc 100644
--- a/src/Umbraco.Tests/Cache/DefaultCachePolicyTests.cs
+++ b/src/Umbraco.Tests/Cache/DefaultCachePolicyTests.cs
@@ -29,8 +29,7 @@ namespace Umbraco.Tests.Cache
         {
             var isCached = false;
             var cache = new Mock<IAppPolicyCache>();
-            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(),
-                It.IsAny<CacheItemPriority>(), It.IsAny<string[]>()))
+            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(), It.IsAny<string[]>()))
                 .Callback(() =>
                 {
                     isCached = true;
@@ -59,8 +58,7 @@ namespace Umbraco.Tests.Cache
         {
             var cached = new List<string>();
             var cache = new Mock<IAppPolicyCache>();
-            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(),
-                It.IsAny<CacheItemPriority>(), It.IsAny<string[]>()))
+            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(), It.IsAny<string[]>()))
                 .Callback((string cacheKey, Func<object> o, TimeSpan? t, bool b, CacheItemPriority cip, CacheItemRemovedCallback circ, string[] s) =>
                 {
                     cached.Add(cacheKey);
diff --git a/src/Umbraco.Tests/Cache/FullDataSetCachePolicyTests.cs b/src/Umbraco.Tests/Cache/FullDataSetCachePolicyTests.cs
index f48974657c..e0ffb7e4cd 100644
--- a/src/Umbraco.Tests/Cache/FullDataSetCachePolicyTests.cs
+++ b/src/Umbraco.Tests/Cache/FullDataSetCachePolicyTests.cs
@@ -38,8 +38,7 @@ namespace Umbraco.Tests.Cache
 
             var isCached = false;
             var cache = new Mock<IAppPolicyCache>();
-            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(),
-                It.IsAny<CacheItemPriority>(), It.IsAny<string[]>()))
+            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(), It.IsAny<string[]>()))
                 .Callback(() =>
                 {
                     isCached = true;
@@ -79,8 +78,7 @@ namespace Umbraco.Tests.Cache
             IList list = null;
 
             var cache = new Mock<IAppPolicyCache>();
-            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(),
-                It.IsAny<CacheItemPriority>(), It.IsAny<string[]>()))
+            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(), It.IsAny<string[]>()))
                 .Callback((string cacheKey, Func<object> o, TimeSpan? t, bool b, CacheItemPriority cip, CacheItemRemovedCallback circ, string[] s) =>
                 {
                     cached.Add(cacheKey);
@@ -122,8 +120,7 @@ namespace Umbraco.Tests.Cache
             IList list = null;
 
             var cache = new Mock<IAppPolicyCache>();
-            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(),
-                It.IsAny<CacheItemPriority>(), It.IsAny<string[]>()))
+            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(), It.IsAny<string[]>()))
                 .Callback((string cacheKey, Func<object> o, TimeSpan? t, bool b, CacheItemPriority cip, CacheItemRemovedCallback circ, string[] s) =>
                 {
                     cached.Add(cacheKey);
diff --git a/src/Umbraco.Tests/Cache/SingleItemsOnlyCachePolicyTests.cs b/src/Umbraco.Tests/Cache/SingleItemsOnlyCachePolicyTests.cs
index ea68873525..f34f4082bd 100644
--- a/src/Umbraco.Tests/Cache/SingleItemsOnlyCachePolicyTests.cs
+++ b/src/Umbraco.Tests/Cache/SingleItemsOnlyCachePolicyTests.cs
@@ -29,8 +29,7 @@ namespace Umbraco.Tests.Cache
         {
             var cached = new List<string>();
             var cache = new Mock<IAppPolicyCache>();
-            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(),
-                It.IsAny<CacheItemPriority>(), It.IsAny<string[]>()))
+            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(), It.IsAny<string[]>()))
                 .Callback((string cacheKey, Func<object> o, TimeSpan? t, bool b, CacheItemPriority cip, CacheItemRemovedCallback circ, string[] s) =>
                 {
                     cached.Add(cacheKey);
@@ -53,8 +52,7 @@ namespace Umbraco.Tests.Cache
         {
             var isCached = false;
             var cache = new Mock<IAppPolicyCache>();
-            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(),
-                It.IsAny<CacheItemPriority>(), It.IsAny<string[]>()))
+            cache.Setup(x => x.Insert(It.IsAny<string>(), It.IsAny<Func<object>>(), It.IsAny<TimeSpan?>(), It.IsAny<bool>(), It.IsAny<string[]>()))
                 .Callback(() =>
                 {
                     isCached = true;
diff --git a/src/Umbraco.Web/Macros/MacroRenderer.cs b/src/Umbraco.Web/Macros/MacroRenderer.cs
index 3368def084..038a4d2431 100755
--- a/src/Umbraco.Web/Macros/MacroRenderer.cs
+++ b/src/Umbraco.Web/Macros/MacroRenderer.cs
@@ -4,7 +4,6 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text;
-using System.Web.Caching;
 using Umbraco.Core;
 using Umbraco.Core.Cache;
 using Umbraco.Core.Configuration.UmbracoSettings;
@@ -139,8 +138,7 @@ namespace Umbraco.Web.Macros
             cache.Insert(
                 CacheKeys.MacroContentCacheKey + model.CacheIdentifier,
                 () => macroContent,
-                new TimeSpan(0, 0, model.CacheDuration),
-                priority: CacheItemPriority.NotRemovable
+                new TimeSpan(0, 0, model.CacheDuration)
                 );
 
             _plogger.Debug<MacroRenderer>("Macro content saved to cache '{MacroCacheId}'", model.CacheIdentifier);