diff --git a/BrowseWebsitesWithoutLoggingIn.txt b/BrowseWebsitesWithoutLoggingIn.txt
index 11e67dbd0..1a0ee058c 100644
--- a/BrowseWebsitesWithoutLoggingIn.txt
+++ b/BrowseWebsitesWithoutLoggingIn.txt
@@ -217,9 +217,16 @@ www.deviantart.com##body > header[role=banner]:not([class*=" "]) ~ div[class^=_]
 ! https://github.com/DandelionSprout/adfilt/issues/1053
 magma.com##modals-box
 
-! https://github.com/DandelionSprout/adfilt/issues/1055
+! VKontakte (https://github.com/DandelionSprout/adfilt/issues/1055)
 vk.com###page_bottom_banners_root
 
+! Substack (https://github.com/DandelionSprout/adfilt/issues/1056)
+substack.com,microsoftsecurityinsights.com,chipstrat.com##.intro-popup
+substack.com,microsoftsecurityinsights.com,chipstrat.com##div[class^=subscribe-]
+substack.com,microsoftsecurityinsights.com,chipstrat.com##.subscription-widget-wrap > .show-subscribe
+substack.com,microsoftsecurityinsights.com,chipstrat.com##.subscription-widget
+substack.com,microsoftsecurityinsights.com,chipstrat.com##.subscribe-widget
+
 ! ——————————————————————————————————————————————————————————————————————
 
 ! Below are entries that I borrowed from «Strappazzon's Annoyances filter list», which is maintained by https://github.com/Strappazzon at https://raw.githubusercontent.com/Strappazzon/filterlists/master/Filterlists/Annoyances.txt, and which is licenced under MIT.