diff --git a/README.md b/README.md
index 8003bd84..c947db34 100644
--- a/README.md
+++ b/README.md
@@ -24,8 +24,8 @@ released version of Riot:
    as desired. See below for details.
 1. Enter the URL into your browser and log into Riot!
 
-Releases are signed by PGP, and can be checked against the public key
-at https://riot.im/packages/keys/riot.asc .
+Releases are signed using gpg and the OpenPGP standard, and can be checked against the public key located
+at https://packages.riot.im/keys/riot.asc .
 
 Note that Chrome does not allow microphone or webcam access for sites served
 over http (except localhost), so for working VoIP you will need to serve Riot
@@ -34,11 +34,18 @@ over https.
 ### Desktop Installation for Debian Stretch
 
 1. Add the repository to your sources.list using either of the following two options:
-  - Directly to sources.list: `echo "deb https://riot.im/packages/debian/ stretch main" | sudo tee -a /etc/apt/sources.list`
-  - As a separate entry in sources.list.d: `echo "deb https://riot.im/packages/debian/ stretch main" | sudo tee /etc/apt/sources.list.d/riot.list`
-2. Add the gpg signing key for the riot repository: `curl -s https://riot.im/packages/debian/repo-key.asc | sudo apt-key add -`
-3. Update your package lists: `sudo apt-get update`
-4. Install Riot: `sudo apt-get install riot-web`
+  - Directly to sources.list:
+`echo "deb https://packages.riot.im/debian/ stretch main" | sudo tee -a /etc/apt/sources.list`
+  - As a separate entry in sources.list.d:
+`echo "deb https://packages.riot.im/debian/ stretch main" | sudo tee /etc/apt/sources.list.d/riot.list`
+2. Download and add the gpg signing key used to authentify the packages from the riot repository to your system's list of trusted keys:
+`curl -s https://packages.riot.im/debian/repo-key.asc | sudo apt-key add -`
+- Optional: if you had the old Riot.im signing key in your apt keyring, delete it, as it is no longer considered trusted:
+`sudo apt-key del 48E8F4A1`
+3. Update your package lists:
+`sudo apt update`
+4. Install Riot:
+`sudo apt install riot-web`
 
 Important Security Note
 =======================