diff --git a/Casks/p/pdf-reader-pro.rb b/Casks/p/pdf-reader-pro.rb
index f0f1eef087..dbe954517a 100644
--- a/Casks/p/pdf-reader-pro.rb
+++ b/Casks/p/pdf-reader-pro.rb
@@ -1,8 +1,8 @@
 cask "pdf-reader-pro" do
   version "2.9.7.0"
-  sha256 :no_check
+  sha256 "4db796a921e3ebb63387613c5822e5619bb7bb72e0be608fa7d83f49a752a1a3"
 
-  url "https://www.pdfreaderpro.com/downloads/PDFReaderPro.dmg"
+  url "https://www.pdfreaderpro.com/downloads/PDFReaderPro_v#{version.major_minor_patch}.dmg"
   name "PDF Reader Pro"
   desc "Read, annotate, edit, convert, create, OCR, fill forms and sign PDFs"
   homepage "https://www.pdfreaderpro.com/"
@@ -12,6 +12,8 @@ cask "pdf-reader-pro" do
     strategy :sparkle
   end
 
+  depends_on macos: ">= :high_sierra"
+
   app "PDF Reader Pro.app"
 
   zap trash: [