diff --git a/Source/Blazorise.Bootstrap/BootstrapThemeGenerator.cs b/Source/Blazorise.Bootstrap/BootstrapThemeGenerator.cs
index a5f91fd154..236540917f 100644
--- a/Source/Blazorise.Bootstrap/BootstrapThemeGenerator.cs
+++ b/Source/Blazorise.Bootstrap/BootstrapThemeGenerator.cs
@@ -603,7 +603,7 @@ protected override void GenerateCardStyles( StringBuilder sb, Theme theme, Theme
                 .AppendLine( "}" );
 
             if ( !string.IsNullOrEmpty( options?.ImageTopRadius ) )
-                sb.Append( ".card-image-top" ).Append( "{" )
+                sb.Append( ".card-img-top" ).Append( "{" )
                     .Append( $"border-top-left-radius: {options.ImageTopRadius};" )
                     .Append( $"border-top-right-radius: {options.ImageTopRadius};" )
                     .AppendLine( "}" );
diff --git a/Source/Blazorise.Bootstrap5/BootstrapThemeGenerator.cs b/Source/Blazorise.Bootstrap5/BootstrapThemeGenerator.cs
index c9ebc617a3..20172299ce 100644
--- a/Source/Blazorise.Bootstrap5/BootstrapThemeGenerator.cs
+++ b/Source/Blazorise.Bootstrap5/BootstrapThemeGenerator.cs
@@ -597,7 +597,7 @@ protected override void GenerateCardStyles( StringBuilder sb, Theme theme, Theme
                 .AppendLine( "}" );
 
             if ( !string.IsNullOrEmpty( options?.ImageTopRadius ) )
-                sb.Append( ".card-image-top" ).Append( "{" )
+                sb.Append( ".card-img-top" ).Append( "{" )
                     .Append( $"border-top-left-radius: {options.ImageTopRadius};" )
                     .Append( $"border-top-right-radius: {options.ImageTopRadius};" )
                     .AppendLine( "}" );