diff --git a/book.toml b/book.toml
index 3d90479c..c342c387 100644
--- a/book.toml
+++ b/book.toml
@@ -16,5 +16,5 @@ level = 1
 [output.linkcheck]
 follow-web-links = true
 exclude = [ "crates\\.io", "gcc\\.godbolt\\.org", "youtube\\.com", "youtu\\.be", "dl\\.acm\\.org", "cs\\.bgu\\.ac\\.il" ]
-cache-timeout = 172800
+cache-timeout = 86400
 warning-policy = "error"