A module block is shown in the Exhibit space of this page. When you use a module block to reference a module from the Terraform Registry such as the one in the example, how do you specify version 1.0.

The correct answer is C. Add a version = "1.0.0" attribute to the module block.. When referencing a module from the Terraform Registry, you pin a specific version by adding a version argument directly in the module block - for example, version = "1.0.0". The Terraform Registry fully supports module versioning and version constraints. The ?ref= syntax applies

Submitted by lars.no· Apr 18, 2026Work with Terraform Modules

Question

A module block is shown in the Exhibit space of this page. When you use a module block to reference a module from the Terraform Registry such as the one in the example, how do you specify version 1.0.0 of the module?

Options

AAppend ?ref=v1.0.0 argument to the source path.
BYou cannot. Modules stored on the public Terraform Registry do not support versioning.
CAdd a version = "1.0.0" attribute to the module block.
DNothing. Modules stored on the public Terraform module Registry always default to version

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(59 responses)

A
5% (3)
B
3% (2)
C
90% (53)
D
2% (1)

Explanation

When referencing a module from the Terraform Registry, you pin a specific version by adding a version argument directly in the module block - for example, version = "1.0.0". The Terraform Registry fully supports module versioning and version constraints. The ?ref= syntax applies to Git-based module sources, not Registry modules. Omitting the version argument causes Terraform to use the latest available version, which is generally unsafe for production.

Topics

#Terraform Modules#Module Versioning#Terraform Registry#Module Block Syntax

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