diff --git a/installation/linux/debian.md b/installation/linux/debian.md
index 4d119a83038..eb6fcaf9727 100644
--- a/installation/linux/debian.md
+++ b/installation/linux/debian.md
@@ -34,6 +34,11 @@ Now let your system update the _apt_ database:
 $ sudo apt-get update
 ```
 
+{% hint style="info" %}
+We recommend upgrading your system (```sudo apt-get upgrade```). This could avoid potential issues with expired certificates.
+{% endhint %}
+
+
 ## Install TD Agent Bit
 
 Using the following _apt-get_ command you are able now to install the latest _td-agent-bit_:
diff --git a/installation/linux/raspbian-raspberry-pi.md b/installation/linux/raspbian-raspberry-pi.md
index 562eded9e05..b9397073f20 100644
--- a/installation/linux/raspbian-raspberry-pi.md
+++ b/installation/linux/raspbian-raspberry-pi.md
@@ -32,6 +32,11 @@ Now let your system update the _apt_ database:
 $ sudo apt-get update
 ```
 
+{% hint style="info" %}
+We recommend upgrading your system (```sudo apt-get upgrade```). This could avoid potential issues with expired certificates.
+{% endhint %}
+
+
 ## Install TD-Agent Bit
 
 Using the following _apt-get_ command you are able now to install the latest _td-agent-bit_:
diff --git a/installation/linux/ubuntu.md b/installation/linux/ubuntu.md
index e450804d373..76fe10fb542 100644
--- a/installation/linux/ubuntu.md
+++ b/installation/linux/ubuntu.md
@@ -40,6 +40,11 @@ Now let your system update the _apt_ database:
 sudo apt-get update
 ```
 
+{% hint style="info" %}
+We recommend upgrading your system (```sudo apt-get upgrade```). This could avoid potential issues with expired certificates.
+{% endhint %}
+
+
 ## Install TD-Agent Bit
 
 Using the following _apt-get_ command you are able now to install the latest _td-agent-bit_: