diff --git a/Dockerfile b/Dockerfile
index facd9b8aa..8778133e0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,7 @@ FROM docker.io/ruby:${RUBY_VERSION}-slim-${DEBIAN_VERSION} as ruby
 
 # Resulting version string is vX.X.X-MASTODON_VERSION_PRERELEASE+MASTODON_VERSION_METADATA
 # Example: v4.2.0-nightly.2023.11.09+something
-# Overwrite existance of 'alpha.0' in version.rb [--build-arg MASTODON_VERSION_PRERELEASE="nightly.2023.11.09"]
+# Overwrite existence of 'alpha.0' in version.rb [--build-arg MASTODON_VERSION_PRERELEASE="nightly.2023.11.09"]
 ARG MASTODON_VERSION_PRERELEASE=""
 # Append build metadata or fork information to version.rb [--build-arg MASTODON_VERSION_METADATA="something"]
 ARG MASTODON_VERSION_METADATA=""
diff --git a/Gemfile b/Gemfile
index 355e69b0c..d3bfeb448 100644
--- a/Gemfile
+++ b/Gemfile
@@ -112,7 +112,7 @@ group :test do
   # RSpec helpers for email specs
   gem 'email_spec'
 
-  # Extra RSpec extenion methods and helpers for sidekiq
+  # Extra RSpec extension methods and helpers for sidekiq
   gem 'rspec-sidekiq', '~> 4.0'
 
   # Browser integration testing