diff --git a/components/api_server/src/initialization/database.py b/components/api_server/src/initialization/database.py
index a0e64c12d5..9e87654edf 100644
--- a/components/api_server/src/initialization/database.py
+++ b/components/api_server/src/initialization/database.py
@@ -32,7 +32,7 @@ def set_feature_compatibility_version(admin_database: Database) -> None:
 
     See https://docs.mongodb.com/manual/reference/command/setFeatureCompatibilityVersion/
     """
-    admin_database.command("setFeatureCompatibilityVersion", "7.0", confirm=True)
+    admin_database.command("setFeatureCompatibilityVersion", "8.0", confirm=True)
 
 
 def create_indexes(database: Database) -> None:
diff --git a/docs/src/changelog.md b/docs/src/changelog.md
index 513e59893d..c7321da7b0 100644
--- a/docs/src/changelog.md
+++ b/docs/src/changelog.md
@@ -17,6 +17,7 @@ If your currently installed *Quality-time* version is not the latest version, pl
 ### Changed
 
 - Change the 'unmerged branches' metric to 'inactive branches', also enabling it to count branches that have been merged but not deleted. Closes [#1253](https://github.com/ICTU/quality-time/issues/1253).
+- Set the MongoDB feature compatibility version to v8. Closes [#10357](https://github.com/ICTU/quality-time/issues/10357).
 
 ## v5.19.0 - 2024-11-22
 
diff --git a/docs/src/versioning.md b/docs/src/versioning.md
index 5326dedf72..e9f3434cdb 100644
--- a/docs/src/versioning.md
+++ b/docs/src/versioning.md
@@ -21,7 +21,7 @@ The table below contains the *Quality-time* releases since the last minor of the
 
 | Version    | Date         | Mongo  | FC     | Migrations | Downgrade       | Upgrade         | Manual changes |
 |------------|--------------|--------|--------|------------|-----------------|-----------------|----------------|
-| v5.20.0    | [unreleased] | v8     | v7     | added      | not possible    | n/a             | no             |
+| v5.20.0    | [unreleased] | v8     | **v8** | added      | not possible    | n/a             | no             |
 | v5.19.0    | 2024-11-22   | v8     | v7     |            | v5.14.0-v5.18.0 | v5.20.0         | no             |
 | v5.18.0    | 2024-11-06   | v8     | v7     |            | v5.14.0-v5.17.1 | v5.19.0-v5.20.0 | no             |
 | v5.17.1    | 2024-10-25   | v8     | v7     |            | v5.14.0-v5.17.0 | v5.18.0-v5.20.0 | no             |