diff --git a/ClosedXML_Tests/Excel/CalcEngine/LookupTests.cs b/ClosedXML_Tests/Excel/CalcEngine/LookupTests.cs
index 7d39689..f416784 100644
--- a/ClosedXML_Tests/Excel/CalcEngine/LookupTests.cs
+++ b/ClosedXML_Tests/Excel/CalcEngine/LookupTests.cs
@@ -122,11 +122,11 @@
         [Test]
         public void Vlookup_Exceptions()
         {
-            Assert.That(() => workbook.Evaluate(@"=VLOOKUP("""",Data!$B$2:$I$71,3,FALSE)"), Throws.TypeOf<ApplicationException>());
-            Assert.That(() => workbook.Evaluate(@"=VLOOKUP(50,Data!$B$2:$I$71,3,FALSE)"), Throws.TypeOf<ApplicationException>());
-            Assert.That(() => workbook.Evaluate(@"=VLOOKUP(20,Data!$B$2:$I$71,9,FALSE)"), Throws.TypeOf<ApplicationException>());
+            Assert.That(() => workbook.Evaluate(@"=VLOOKUP("""",Data!$B$2:$I$71,3,FALSE)"), Throws.TypeOf<ArgumentException>());
+            Assert.That(() => workbook.Evaluate(@"=VLOOKUP(50,Data!$B$2:$I$71,3,FALSE)"), Throws.TypeOf<ArgumentException>());
+            Assert.That(() => workbook.Evaluate(@"=VLOOKUP(20,Data!$B$2:$I$71,9,FALSE)"), Throws.TypeOf<ArgumentOutOfRangeException>());
 
-            Assert.That(() => workbook.Evaluate(@"=VLOOKUP(-1,Data!$B$2:$I$71,9,TRUE)"), Throws.TypeOf<ApplicationException>());
+            Assert.That(() => workbook.Evaluate(@"=VLOOKUP(-1,Data!$B$2:$I$71,9,TRUE)"), Throws.TypeOf<ArgumentOutOfRangeException>());
         }
     }
 }
diff --git a/ClosedXML_Tests/Excel/Loading/LoadingTests.cs b/ClosedXML_Tests/Excel/Loading/LoadingTests.cs
index 7298460..a20cf0f 100644
--- a/ClosedXML_Tests/Excel/Loading/LoadingTests.cs
+++ b/ClosedXML_Tests/Excel/Loading/LoadingTests.cs
@@ -198,7 +198,7 @@
 
                 var workbook = XLWorkbook.OpenFromTemplate(tf1.Path);
                 Assert.True(workbook.Worksheets.Any());
-                Assert.Throws<Exception>(() => workbook.Save());
+                Assert.Throws<InvalidOperationException>(() => workbook.Save());
 
                 workbook.SaveAs(tf2.Path);
             }