diff --git a/README.md b/README.md
index 4de9999..f9a13a3 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ Cross-distro updating and safe update preview
 
 Dependencies:  
 - [ztd](https://github.com/zawwz/ztd)  
+- sudo
 
 Supported package managers:  
 - pacman  
@@ -18,6 +19,10 @@ Supported package managers:
 Optional dependencies:  
 - yay (AUR support for arch)  
 
+#### /!\
+
+Does not work with ubuntu
+
 #### Building
 
 ``make -j8`` for a shared build  
diff --git a/commands/apt_fetch b/commands/apt_fetch
index 249e54b..8d037c1 100644
--- a/commands/apt_fetch
+++ b/commands/apt_fetch
@@ -1,2 +1,2 @@
-sudo apt-get update >/dev/null || return $?
-apt-get list --upgradable 2>/dev/null | tail -n +2 | awk -F "/" '{print $1" "$2}' | tr -d ']' | awk '{print $1" "$7" -> "$3}'
+sudo apt update >/dev/null || return $?
+apt list --upgradable 2>/dev/null | tail -n +2 | awk -F "/" '{print $1" "$2}' | tr -d ']' | awk '{print $1" "$7" -> "$3}'
diff --git a/include/commands.h b/include/commands.h
index 96153b3..aa8fc72 100644
--- a/include/commands.h
+++ b/include/commands.h
@@ -17,9 +17,9 @@
 #define PACMAN_LOCAL_SIZE_CUT_COMMAND     " |grep 'Installed Size'|cut -d':' -f2|tr -d ' '|cut -d'i' -f1 | tr -d 'B'|numfmt --from=iec|tr -d '\n'"
 
 // apt/dpkg
-#define APT_FETCH_COMMAND                 "sudo apt-get update >/dev/null || return $?\napt-get list --upgradable 2>/dev/null | tail -n +2 | awk -F \"/\" '{print $1\" \"$2}' | tr -d ']' | awk '{print $1\" \"$7\" -> \"$3}'"
-#define APT_UPDATE_COMMAND                "sudo apt-get upgrade"
-#define APT_UPDATE_COMMAND_NOCONFIRM      "sudo apt-get -y upgrade"
+#define APT_FETCH_COMMAND                 "sudo apt update >/dev/null 2>&1 || return $?\napt list --upgradable 2>/dev/null | tail -n +2 | awk -F \"/\" '{print $1\" \"$2}' | tr -d ']' | awk '{print $1\" \"$7\" -> \"$3}'"
+#define APT_UPDATE_COMMAND                "sudo apt upgrade"
+#define APT_UPDATE_COMMAND_NOCONFIRM      "sudo apt -y upgrade"
 
 #define APT_EXT_INFO_COMMAND              "apt show "
 #define APT_LOCAL_INFO_COMMAND            "dpkg -s "