diff --git a/tools/find-outdated-deps.pl b/tools/find-outdated-deps.pl
deleted file mode 100755
index 61fccb0b9..000000000
--- a/tools/find-outdated-deps.pl
+++ /dev/null
@@ -1,127 +0,0 @@
-#!/usr/bin/perl
-
-
-### Remmber to call `rebar update-deps` before calling this script
-
-use strict;
-use File::Slurp qw(slurp);
-use feature qw(say);
-
-sub cmp_ver {
-    my @a = split /(\d+)/, $a;
-    my @b = split /(\d+)/, $b;
-    my $is_num = 1;
-
-    while (1) {
-        my $ap = shift @a;
-        my $bp = shift @b;
-        $is_num = 1 - $is_num;
-
-        if (defined $ap) {
-            if (defined $bp) {
-                if ($is_num) {
-                    next if $ap == $bp;
-                    return 1 if $ap > $bp;
-                    return -1;
-                } else {
-                    next if $ap eq $bp;
-                    return 1 if $ap gt $bp;
-                    return -1;
-                }
-            } else {
-                return 1;
-            }
-        } elsif (defined $bp) {
-            return -1;
-        } else {
-            return 0;
-        }
-    }
-}
-
-sub get_deps {
-    my ($dir) = @_;
-    my (%deps, %floating_deps);
-
-    return (\%deps, \%floating_deps) unless -f "$dir/rebar.config";
-
-    my $config = slurp("$dir/rebar.config");
-
-    while ($config =~ /{\s*([^{]*?)\s*,[^{]*?{\s*git\s*[^{]*?{\s*tag\s*,\s*"(.*?)"\s*}/gs) {
-        $deps{$1} = $2;
-    }
-
-    if ($config =~ /{floating_deps\s*,\s*\[\s*([^\]]+)\s*\]}/s) {
-        my $fd = $1;
-        while ($fd =~ /(\w+)/g) {
-            $floating_deps{$1} = 1;
-        }
-    }
-    return (\%deps, \%floating_deps);
-}
-
-my $base_dir = ".";
-
-while (not -f "$base_dir/rebar.config") {
-    $base_dir = "../$base_dir";
-}
-
-my (%deps, %floating_deps);
-{
-    my ($deps, $floating_deps) = get_deps($base_dir);
-    %deps = %$deps;
-    %floating_deps = %$floating_deps
-}
-
-my $all = $ARGV[0] eq "--all";
-
-my %cross_deps;
-
-$cross_deps{$_}->{$deps{$_}} = ["ejabberd"] for keys %deps;
-
-for (sort keys %deps) {
-    my $dep = $_;
-    my $dep_dir = "$base_dir/deps/$dep";
-    next unless -d $dep_dir;
-    next unless $all or exists $floating_deps{$dep};
-
-    my @tags0 = `git -C $dep_dir tag`;
-    chomp(@tags0);
-    my @tags = grep { /^v?\d+(?:\.\d+)*$/ } @tags0;
-    @tags = sort cmp_ver @tags;
-
-    #say "versions: ", join ", ", @tags;
-
-    my $last_tag = $tags[$#tags];
-    my @new = `git -C $dep_dir log --oneline $last_tag..origin/master`;
-    chomp(@new);
-
-    my ($cdeps, $fdeps) = get_deps($dep_dir);
-
-    for (keys %$cdeps) {
-        push @{$cross_deps{$_}->{$cdeps->{$_}}}, $dep;
-    }
-
-    if ($deps{$dep} ne $last_tag) {
-        if (@new) {
-            say $dep," can be updated: ", $deps{$dep}, " -> ", $last_tag, " and has ",
-            scalar(@new), " commits after last tag:";
-            say "   $_" for @new;
-        } else {
-            say $dep," can be updated: ", $deps{$dep}, " -> ", $last_tag;
-        }
-    } elsif (@new) {
-        say $dep, " has ", scalar(@new), " commits after last tag:";
-        say "   $_" for @new;
-    }
-}
-
-say "";
-for (sort keys %cross_deps) {
-    my $dep = $_;
-
-    if ((scalar keys %{$cross_deps{$dep}}) > 1) {
-        say "Dependency $dep is requested in different versions:";
-        say "   $_ -> ", join(", ", @{$cross_deps{$dep}->{$_}}) for sort cmp_ver keys %{$cross_deps{$dep}};
-    }
-}