diff --git a/components/ui/codeblock.tsx b/components/ui/codeblock.tsx
index ccbf82d..3a61fd4 100644
--- a/components/ui/codeblock.tsx
+++ b/components/ui/codeblock.tsx
@@ -128,6 +128,9 @@ const CodeBlock: FC<Props> = memo(({ language, value }) => {
           background: 'transparent',
           padding: '1.5rem 1rem'
         }}
+        lineNumberStyle={{
+          userSelect: "none",
+        }}
         codeTagProps={{
           style: {
             fontSize: '0.9rem',