diff --git a/blocklists/README.md b/blocklists/README.md
index fbb9848..e62f6d7 100644
--- a/blocklists/README.md
+++ b/blocklists/README.md
@@ -12,6 +12,7 @@
 * `gardenfence.csv` - A mirror of the [Gardenfence](https://gardenfence.github.io/) Tier 0 file.
 * `tier0-council.csv` - Requires 80% agreement on blocks from trusted sources.
 * `birdsite.csv` - All the Birdsite Live Blocks. This file is provided separately as a convenience.
+* `dni.csv` - Do Not Interact (DNI). Badly-moderated servers that have returned hits for illegal content. Merged into all unified T0-T3 lists.
 * `_unified_min_blocklist.csv` - [Deprecated] Identical to the `_unified_tier0_blocklist.csv`.
 * *Other Files* - Other files listed here are individual trusted sources who provided data for the blocklist.
 
diff --git a/blocklists/mastodon/README.md b/blocklists/mastodon/README.md
index fbb9848..e62f6d7 100644
--- a/blocklists/mastodon/README.md
+++ b/blocklists/mastodon/README.md
@@ -12,6 +12,7 @@
 * `gardenfence.csv` - A mirror of the [Gardenfence](https://gardenfence.github.io/) Tier 0 file.
 * `tier0-council.csv` - Requires 80% agreement on blocks from trusted sources.
 * `birdsite.csv` - All the Birdsite Live Blocks. This file is provided separately as a convenience.
+* `dni.csv` - Do Not Interact (DNI). Badly-moderated servers that have returned hits for illegal content. Merged into all unified T0-T3 lists.
 * `_unified_min_blocklist.csv` - [Deprecated] Identical to the `_unified_tier0_blocklist.csv`.
 * *Other Files* - Other files listed here are individual trusted sources who provided data for the blocklist.
 
diff --git a/config/tier0.conf.toml b/config/tier0.conf.toml
index 6c4424a..27a123f 100644
--- a/config/tier0.conf.toml
+++ b/config/tier0.conf.toml
@@ -17,6 +17,7 @@ blocklist_url_sources = [
   { url = 'file:///opt/fediblockhole/blocklists/tier0.csv', format = 'csv' },
   { url = 'file:///opt/fediblockhole/blocklists/gardenfence.csv', format = 'csv' },
   { url = 'file:///opt/fediblockhole/blocklists/tier0-council.csv', format = 'csv' },
+  { url = 'file:///opt/fediblockhole/blocklists/dni.csv', format = 'csv' },
 ]
 
 # List of instances to write blocklist to