diff --git a/Dapper/CompiledRegex.cs b/Dapper/CompiledRegex.cs
index bbf857d56..5deef70f1 100644
--- a/Dapper/CompiledRegex.cs
+++ b/Dapper/CompiledRegex.cs
@@ -9,7 +9,7 @@ internal static partial class CompiledRegex
     [StringSyntax("Regex")]
 #endif
     private const string
-        WhitespaceOrReservedPattern = @"[\s;/\-+*]|^vacuum$",
+        WhitespaceOrReservedPattern = @"[\s;/\-+*]|^vacuum$|^commit$|^rollback$",
         LegacyParameterPattern = @"(?<![\p{L}\p{N}@_])[?@:](?![\p{L}\p{N}@_])", // look for ? / @ / : *by itself* - see SupportLegacyParameterTokens
         LiteralTokensPattern = @"(?<![\p{L}\p{N}_])\{=([\p{L}\p{N}_]+)\}", // look for {=abc} to inject member abc as a literal
         PseudoPositionalPattern = @"\?([\p{L}_][\p{L}\p{N}_]*)\?"; // look for ?abc? for the purpose of subst back to ? using member abc
diff --git a/tests/Dapper.Tests/ProcedureTests.cs b/tests/Dapper.Tests/ProcedureTests.cs
index be8dbe746..b0371174b 100644
--- a/tests/Dapper.Tests/ProcedureTests.cs
+++ b/tests/Dapper.Tests/ProcedureTests.cs
@@ -218,7 +218,7 @@ public void TestDateTime2PrecisionPreservedInDynamicParameters()
         {
             const string tempSPName = "#" + nameof(TestDateTime2PrecisionPreservedInDynamicParameters);
 
-            DateTime datetimeDefault = new DateTime(2000, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+            DateTime datetimeDefault = new(2000, 1, 1, 0, 0, 0, DateTimeKind.Utc);
             DateTime datetime2 = datetimeDefault.AddTicks(1); // Add 100 ns
 
             Assert.True(datetimeDefault < datetime2);
@@ -252,7 +252,7 @@ public void TestDateTime2LosePrecisionInDynamicParameters(DbType? dbType)
         {
             const string tempSPName = "#" + nameof(TestDateTime2LosePrecisionInDynamicParameters);
 
-            DateTime datetimeDefault = new DateTime(2000, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+            DateTime datetimeDefault = new(2000, 1, 1, 0, 0, 0, DateTimeKind.Utc);
             DateTime datetime2 = datetimeDefault.AddTicks(1); // Add 100 ns
 
             Assert.True(datetimeDefault < datetime2);
@@ -331,6 +331,8 @@ public async Task Issue1986_AutoProc_Whitespace(string space)
         [InlineData("FOO BAR;", CommandType.Text)]
         [InlineData("VACUUM", CommandType.Text)]
         [InlineData("VACUUM;", CommandType.Text)]
+        [InlineData("cOmmiT", CommandType.Text)]
+        [InlineData("rOllbAck", CommandType.Text)]
 
         // comments imply text
         [InlineData("foo--bar", CommandType.Text)]