diff --git a/src/Scripty.MsBuild/ScriptyTask.cs b/src/Scripty.MsBuild/ScriptyTask.cs
index c44bfc5..ecdc16a 100644
--- a/src/Scripty.MsBuild/ScriptyTask.cs
+++ b/src/Scripty.MsBuild/ScriptyTask.cs
@@ -72,6 +72,12 @@ public override bool Execute()
                 return false;
             }
 
+            // Some build environments by default use non-UTF8 character encodings. This
+            // fixes issues in those environments by forcing the character encoding to match
+            // the decoding in the target process.
+            Console.InputEncoding = Encoding.UTF8;
+            Console.OutputEncoding = Encoding.UTF8;
+
             // Kick off the evaluation process, which must be done in a seperate process space
             // otherwise MSBuild complains when we construct the Roslyn workspace project since
             // it uses MSBuild to figure out what the project contains and MSBuild only supports
diff --git a/src/Scripty/Settings.cs b/src/Scripty/Settings.cs
index 90f1c6a..8abcfa9 100644
--- a/src/Scripty/Settings.cs
+++ b/src/Scripty/Settings.cs
@@ -64,6 +64,12 @@ private KeyValuePair<string, string> ParseProperty(string argument)
 
         public void ReadStdin()
         {
+            // Some build environments by default use non-UTF8 character encodings. This
+            // fixes issues in those environments by forcing the character encoding to match
+            // the decoding in the target process.
+            Console.InputEncoding = Encoding.UTF8;
+            Console.OutputEncoding = Encoding.UTF8;
+
             string stdin = Console.In.ReadToEnd();
             JsonConvert.PopulateObject(stdin, this);
         }