diff --git a/guides/upgrading/v2.0.md b/guides/upgrading/v2.0.md
index 4a2e7195..7f270342 100644
--- a/guides/upgrading/v2.0.md
+++ b/guides/upgrading/v2.0.md
@@ -155,7 +155,7 @@ Telemetry event names have changed, along with some of the metadata and timing
 units. The new event names are consistent and align with the now-standard
 `telemetry:span` conventions.
 
-Update handlers to and match on the new event names:
+Update handlers to match on the new event names:
 
 ```diff
 - def handle_event([:oban, :failure], measure, meta, _) do
diff --git a/lib/oban/plugins/reindexer.ex b/lib/oban/plugins/reindexer.ex
index e34bfe28..82aab084 100644
--- a/lib/oban/plugins/reindexer.ex
+++ b/lib/oban/plugins/reindexer.ex
@@ -8,7 +8,7 @@ defmodule Oban.Plugins.Reindexer do
   The plugin uses `REINDEX` with the `CONCURRENTLY` option to rebuild without taking any locks
   that prevent concurrent inserts, updates, or deletes on the table.
 
-  Note: This plugin requires the `CONCURRENT` option, which is only available in Postgres 12 and
+  Note: This plugin requires the `CONCURRENTLY` option, which is only available in Postgres 12 and
   above.
 
   ## Using the Plugin
diff --git a/lib/oban/validation.ex b/lib/oban/validation.ex
index 9c45c4c3..5bf0c8c4 100644
--- a/lib/oban/validation.ex
+++ b/lib/oban/validation.ex
@@ -112,7 +112,7 @@ defmodule Oban.Validation do
     if val in list do
       :ok
     else
-      {:error, "expected #{inspect(key)} to included in #{inspect(list)}, got: #{inspect(val)}"}
+      {:error, "expected #{inspect(key)} to be included in #{inspect(list)}, got: #{inspect(val)}"}
     end
   end
 
diff --git a/test/oban/peers/postgres_test.exs b/test/oban/peers/postgres_test.exs
index c81f9a63..551bee1c 100644
--- a/test/oban/peers/postgres_test.exs
+++ b/test/oban/peers/postgres_test.exs
@@ -22,7 +22,7 @@ defmodule Oban.Peers.PostgresTest do
     assert_received {:event, [:election, :stop], _measure, %{leader: _, peer: Postgres}}
   end
 
-  test "gacefully handling a missing oban_peers table" do
+  test "gracefully handling a missing oban_peers table" do
     mangle_peers_table!()
 
     logged =