```sh
# List the available releases
$ helm search repo hashicorp/vault -l
NAME           	CHART VERSION	APP VERSION	DESCRIPTION
hashicorp/vault	0.20.0       	1.10.3     	Official HashiCorp Vault Chart
hashicorp/vault	0.19.0       	1.9.2      	Official HashiCorp Vault Chart
hashicorp/vault	0.18.0       	1.9.0      	Official HashiCorp Vault Chart
hashicorp/vault	0.17.1       	1.8.4      	Official HashiCorp Vault Chart
hashicorp/vault	0.17.0       	1.8.4      	Official HashiCorp Vault Chart
hashicorp/vault	0.16.1       	1.8.3      	Official HashiCorp Vault Chart
hashicorp/vault	0.16.0       	1.8.2      	Official HashiCorp Vault Chart
hashicorp/vault	0.15.0       	1.8.1      	Official HashiCorp Vault Chart
hashicorp/vault	0.14.0       	1.8.0      	Official HashiCorp Vault Chart

# Install version 0.20.0
$ helm install vault hashicorp/vault --version 0.20.0
```