diff --git a/Octokit/Clients/GitDatabaseClient.cs b/Octokit/Clients/GitDatabaseClient.cs
index 6ec39b7b..4265df77 100644
--- a/Octokit/Clients/GitDatabaseClient.cs
+++ b/Octokit/Clients/GitDatabaseClient.cs
@@ -22,10 +22,10 @@
             Reference = new ReferencesClient(apiConnection);
         }
 
-        public IBlobsClient Blob { get; set; }
-        public ITreesClient Tree { get; set; }
-        public ITagsClient Tag { get; set; }
-        public ICommitsClient Commit { get; set; }
-        public IReferencesClient Reference { get; set; }
+        public IBlobsClient Blob { get; private set; }
+        public ITreesClient Tree { get; private set; }
+        public ITagsClient Tag { get; private set; }
+        public ICommitsClient Commit { get; private set; }
+        public IReferencesClient Reference { get; private set; }
     }
 }
\ No newline at end of file
diff --git a/Octokit/Clients/IGitDatabaseClient.cs b/Octokit/Clients/IGitDatabaseClient.cs
index e640c897..328fde5f 100644
--- a/Octokit/Clients/IGitDatabaseClient.cs
+++ b/Octokit/Clients/IGitDatabaseClient.cs
@@ -8,10 +8,10 @@
     /// </remarks>
     public interface IGitDatabaseClient
     {
-        IBlobsClient Blob { get; set; }
-        ITagsClient Tag { get; set; }
-        ITreesClient Tree { get; set; }
-        ICommitsClient Commit { get; set; }
-        IReferencesClient Reference { get; set; }
+        IBlobsClient Blob { get; }
+        ITagsClient Tag { get; }
+        ITreesClient Tree { get; }
+        ICommitsClient Commit { get; }
+        IReferencesClient Reference { get; }
     }
 }
\ No newline at end of file