diff --git a/README.md b/README.md
index 91968b3..253b334 100644
--- a/README.md
+++ b/README.md
@@ -48,11 +48,13 @@
 - With APT:
 
 ```bash
-# check version with apt
-sudo apt show -a tmux 2> /dev/null | grep Version:
+# check version and repository with apt
+sudo apt show -a tmux 2> /dev/null | grep -E 'Version:|APT-Sources:'
 
 # if your apt repositories deliver at least 3.3, you can install it
 sudo apt install tmux
+# or if there is a specific repository
+sudo apt -t repo-backports install tmux
 ```
 
 - Or build & install:
@@ -85,11 +87,13 @@ wget -c -nv "$_URL" -O - | sudo tar --no-same-owner -xzv -C /usr/local/bin gitmu
 - With APT:
 
 ```bash
-# check version with apt
-sudo apt show -a fzf 2> /dev/null | grep Version:
+# check version and repository with apt
+sudo apt show -a fzf 2> /dev/null | grep -E 'Version:|APT-Sources:'
 
 # if your apt repositories deliver at least 0.35, you can install it
 sudo apt install fzf
+# or if there is a specific repository
+sudo apt -t repo-backports install fzf
 ```
 
 - Or build & install: