diff --git a/Dockerfile b/Dockerfile
index c6597d8..a152d67 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.17.9-alpine
+FROM nginx:1.19.3-alpine
 
 RUN \
   apk add --no-cache \
@@ -29,7 +29,7 @@ EXPOSE 80 443
 RUN \
     git clone https://git.tt-rss.org/fox/tt-rss.git /var/lib/tt-rss && \
     cd /var/lib/tt-rss && \
-    git checkout 61be0b215db850395ef2746a5b7499f39db30662
+    git checkout 83e08e0e204696766fe78f2bd548cdd41d9e6f9f
 
 WORKDIR /app
 COPY CHECKS /app/CHECKS
diff --git a/config.php b/config.php
index c652ed3..7b5b678 100644
--- a/config.php
+++ b/config.php
@@ -39,7 +39,7 @@
   // background processes while not running tt-rss, this method is generally
   // viable to keep your feeds up to date.
   // Still, there are more robust (and recommended) updating methods
-  // available, you can read about them here: http://tt-rss.org/wiki/UpdatingFeeds
+  // available, you can read about them here: https://tt-rss.org/wiki/UpdatingFeeds
 
   // *****************************
   // *** Files and directories ***