diff --git a/.changeset/orange-readers-carry.md b/.changeset/orange-readers-carry.md
new file mode 100644
index 0000000..a38ce69
--- /dev/null
+++ b/.changeset/orange-readers-carry.md
@@ -0,0 +1,5 @@
+---
+"github-vscode-theme": patch
+---
+
+Fix inline code block contrast for High Contrast theme.
diff --git a/src/theme.js b/src/theme.js
index 20a3ca3..d8cde46 100644
--- a/src/theme.js
+++ b/src/theme.js
@@ -52,6 +52,7 @@ function getTheme({ theme, name }) {
       "textBlockQuote.border"    : color.border.default,
       "textCodeBlock.background" : color.neutral.muted,
       "textPreformat.foreground" : color.fg.muted,
+      "textPreformat.background" : color.neutral.muted,
       "textSeparator.foreground" : color.border.muted,
 
       "icon.foreground"           : color.fg.muted,