diff --git a/cookbooks/consul/install.rb b/cookbooks/consul/install.rb
index 6e8adec..ebfac5e 100644
--- a/cookbooks/consul/install.rb
+++ b/cookbooks/consul/install.rb
@@ -15,6 +15,8 @@ template '/etc/apt/sources.list.d/hashicorp.list' do
   variables(distribution: DIST)
 end
 
-execute 'apt update'
+execute 'apt update' do
+  not_if 'which consul'
+end
 
 package 'consul'
diff --git a/cookbooks/grafana/install.rb b/cookbooks/grafana/install.rb
index 91eb4a9..5561cfb 100644
--- a/cookbooks/grafana/install.rb
+++ b/cookbooks/grafana/install.rb
@@ -10,7 +10,9 @@ execute 'curl https://packages.grafana.com/gpg.key | apt-key add -' do
   not_if 'apt-key list | grep grafana'
 end
 
-execute 'apt update'
+execute 'apt update' do
+  not_if 'which grafana-server'
+end
 
 package 'grafana' do
   action :install
diff --git a/cookbooks/nomad/install.rb b/cookbooks/nomad/install.rb
index 74adaea..69a72b2 100644
--- a/cookbooks/nomad/install.rb
+++ b/cookbooks/nomad/install.rb
@@ -15,6 +15,8 @@ template '/etc/apt/sources.list.d/hashicorp.list' do
   variables(distribution: DIST)
 end
 
-execute 'apt update'
+execute 'apt update' do
+  not_if 'which nomad'
+end
 
 package 'nomad'
diff --git a/cookbooks/vault/install.rb b/cookbooks/vault/install.rb
index b93c132..3430e90 100644
--- a/cookbooks/vault/install.rb
+++ b/cookbooks/vault/install.rb
@@ -15,6 +15,8 @@ template '/etc/apt/sources.list.d/hashicorp.list' do
   variables(distribution: DIST)
 end
 
-execute 'apt update'
+execute 'apt update' do
+  not_if 'which vault'
+end
 
 package 'vault'
diff --git a/cookbooks/vector/install.rb b/cookbooks/vector/install.rb
index b6424b3..8d1b39f 100644
--- a/cookbooks/vector/install.rb
+++ b/cookbooks/vector/install.rb
@@ -17,6 +17,8 @@ template '/etc/apt/sources.list.d/timber-vector.list' do
   variables(distribution: DIST)
 end
 
-execute 'apt update'
+execute 'apt update' do
+  not_if 'which vector'
+end
 
 package 'vector'