diff --git a/test/pdfs/issue2799.pdf.link b/test/pdfs/issue2799.pdf.link
index 72006f6aa..58da3fc8f 100644
--- a/test/pdfs/issue2799.pdf.link
+++ b/test/pdfs/issue2799.pdf.link
@@ -1 +1 @@
-https://dl.dropboxusercontent.com/s/15j936nuidw0e8d/SIMPLE-Vivace.pdf?token_hash=AAEwO6O_zfDfSxC3Zmpoy_cNfiR109Tn-REcWa32slkaSA&disable_range=1
+https://web.archive.org/web/20160118144632/http://www.pdf-archive.com/2016/01/18/simple-vivace-3/simple-vivace-3.pdf
diff --git a/test/pdfs/issue5726.pdf.link b/test/pdfs/issue5726.pdf.link
index 2784200b5..34c175536 100644
--- a/test/pdfs/issue5726.pdf.link
+++ b/test/pdfs/issue5726.pdf.link
@@ -1 +1 @@
-http://digipool.bib-bvb.de/bvb/info/OCR_with_TIFFG4.pdf
+https://web.archive.org/web/20160118145140/http://www.pdf-archive.com/2016/01/18/ocr-with-tiffg4-1/ocr-with-tiffg4-1.pdf
diff --git a/test/pdfs/yo01.pdf.link b/test/pdfs/yo01.pdf.link
deleted file mode 100644
index 2caf90c2e..000000000
--- a/test/pdfs/yo01.pdf.link
+++ /dev/null
@@ -1 +0,0 @@
-http://www.ugokotsu.co.jp/ug/rosen/jikoku/yo01.pdf