diff --git a/2-modules/README.md b/2-modules/README.md
index ea2c140..703ef4c 100644
--- a/2-modules/README.md
+++ b/2-modules/README.md
@@ -54,6 +54,7 @@ In the first lab, we bootstrapped Terraform and got familiar with the very basic
 
   module "lambda_function" {
     source = "terraform-aws-modules/lambda/aws"
+    version = "3.2.0"
 
     function_name = "hello-world"
     handler       = "helloworld.handler"
@@ -75,6 +76,8 @@ The good part is, that we can write our own modules or use third-party modules.
 
 The Terraform community is very vibrant and you can find thousands of modules. Before reinventing the wheel, check out the [Terraform Registry](https://registry.terraform.io).
 
+For third-party modules, it's [good practice](https://www.terraform.io/language/expressions/version-constraints#module-versions) to add the version attribute and define a specific version. That ensures you don't accidentally upgrade third-party modules.
+
 That's it for the Lambda function. Let's go to the API Gateway.
 
 ## API Gateway
@@ -118,7 +121,8 @@ That's it for the Lambda function. Let's go to the API Gateway.
   }
 
   module "lambda_function" {
-    source = "terraform-aws-modules/lambda/aws"
+    source  = "terraform-aws-modules/lambda/aws"
+    version = "3.2.0"
 
     function_name = "hello-world"
     handler       = "helloworld.handler"
diff --git a/2-modules/main.tf b/2-modules/main.tf
index f67fc73..488db05 100644
--- a/2-modules/main.tf
+++ b/2-modules/main.tf
@@ -35,7 +35,8 @@ resource "aws_s3_bucket_website_configuration" "website" {
 }
 
 module "lambda_function" {
-  source = "terraform-aws-modules/lambda/aws"
+  source  = "terraform-aws-modules/lambda/aws"
+  version = "3.2.0"
 
   function_name = "hello-world"
   handler       = "helloworld.handler"
diff --git a/3-composition/README.md b/3-composition/README.md
index 8e0103e..7541f8c 100644
--- a/3-composition/README.md
+++ b/3-composition/README.md
@@ -30,7 +30,8 @@ The previous lab introduced a third-party module to easily deploy a Lambda funct
   }
 
   module "lambda_function" {
-    source = "terraform-aws-modules/lambda/aws"
+    source  = "terraform-aws-modules/lambda/aws"
+    version = "3.2.0"
 
     function_name = "${local.project_name}-${var.environment}"
     handler       = "helloworld.handler"
diff --git a/3-composition/modules/api/main.tf b/3-composition/modules/api/main.tf
index f867964..6fba30f 100644
--- a/3-composition/modules/api/main.tf
+++ b/3-composition/modules/api/main.tf
@@ -3,7 +3,8 @@ locals {
 }
 
 module "lambda_function" {
-  source = "terraform-aws-modules/lambda/aws"
+  source  = "terraform-aws-modules/lambda/aws"
+  version = "3.2.0"
 
   function_name = "${local.project_name}-${var.environment}"
   handler       = "helloworld.handler"
diff --git a/4-parameterization/README.md b/4-parameterization/README.md
index 836fa76..ee7a83b 100644
--- a/4-parameterization/README.md
+++ b/4-parameterization/README.md
@@ -24,7 +24,8 @@ The API becomes more powerful in this lab, but we want to be careful and only ro
   }
 
   module "lambda_function" {
-    source = "terraform-aws-modules/lambda/aws"
+    source  = "terraform-aws-modules/lambda/aws"
+    version = "3.2.0"
 
     function_name = "${local.project_name}-${var.environment}"
     handler       = "helloworld.handler"
diff --git a/4-parameterization/modules/api/main.tf b/4-parameterization/modules/api/main.tf
index b5860c4..90e35ca 100644
--- a/4-parameterization/modules/api/main.tf
+++ b/4-parameterization/modules/api/main.tf
@@ -4,6 +4,7 @@ locals {
 
 module "lambda_function" {
   source = "terraform-aws-modules/lambda/aws"
+  version = "3.2.0"
 
   function_name = "${local.project_name}-${var.environment}"
   handler       = "helloworld.handler"