diff --git a/docs/abra/upgrade.md b/docs/abra/upgrade.md
index 4196dfa..6749023 100644
--- a/docs/abra/upgrade.md
+++ b/docs/abra/upgrade.md
@@ -19,14 +19,24 @@ abra upgrade --rc
 ### Manually
 
 You can also download a release manually. Go to the [releases
-page](https://git.coopcloud.tech/toolshed/abra/releases) Then, download the
-binary and untar it. For example, for release candidate `0.10.0-rc1-beta` and
-`linux_amd64`.
+page](https://git.coopcloud.tech/toolshed/abra/releases), download the release
+file, confirm the checksum and untar it.
+
+For example, for release candidate `0.10.0-rc1-beta` and `linux_amd64`.
+Download the release file.
 
 ```
 wget https://git.coopcloud.tech/toolshed/abra/releases/download/0.10.0-rc1-beta/abra_0.10.0-rc1-beta_linux_amd64.tar.gz
 ```
 
+Confirm the checksum.
+
+```
+wget https://git.coopcloud.tech/toolshed/abra/releases/download/0.10.0-rc1-beta/checksums.txt
+cat checksums.txt
+sha256sum abra_0.10.0-rc1-beta_linux_amd64.tar.gz
+```
+
 Untar the release.
 
 ```