diff --git a/.github/workflows/rspec.yml b/.github/workflows/rspec.yml
index c8e7bb1..c49cdc3 100644
--- a/.github/workflows/rspec.yml
+++ b/.github/workflows/rspec.yml
@@ -27,6 +27,7 @@ jobs:
           "gemfiles/graphql_2_1_4.gemfile",
           "gemfiles/graphql_2_3_0.gemfile",
           "gemfiles/graphql_2_3_11.gemfile",
+          "gemfiles/graphql_2_4_8.gemfile",
           "gemfiles/graphql_master.gemfile"
         ]
         exclude:
diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index fdf7761..22dd041 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -14,7 +14,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.0
+        ruby-version: 3.1
         bundler-cache: true
         bundler: 2.2.0
     - name: Lint Ruby code with RuboCop
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 019bbac..ddbd58f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## master
 
+- [PR#125](https://github.com/DmitryTsepelev/graphql-ruby-fragment_cache/pull/125) Introduce cache lookup instrumentation hook ([@danielhartnell][])
+
 ## 1.20.5 (2024-11-02)
 
 - [PR#120](https://github.com/DmitryTsepelev/graphql-ruby-fragment_cache/pull/120) Fix warning on ActiveSupport::Cache.format_version ([@Drowze][])
@@ -211,3 +213,4 @@
 [@diegofigueroa]: https://github.com/diegofigueroa
 [@noma4i]: https://github.com/noma4i
 [@Drowze]: https://github.com/Drowze
+[@danielhartnell]: https://github.com/danielhartnell
diff --git a/gemfiles/graphql_2_4_8.gemfile b/gemfiles/graphql_2_4_8.gemfile
new file mode 100644
index 0000000..772b18f
--- /dev/null
+++ b/gemfiles/graphql_2_4_8.gemfile
@@ -0,0 +1,5 @@
+source "https://rubygems.org"
+
+gem "graphql", "~> 2.4.8"
+
+gemspec path: "../"
diff --git a/gemfiles/rubocop.gemfile b/gemfiles/rubocop.gemfile
index b20d1b0..2a5a44e 100644
--- a/gemfiles/rubocop.gemfile
+++ b/gemfiles/rubocop.gemfile
@@ -2,4 +2,5 @@ source "https://rubygems.org" do
   gem "rubocop-md", "~> 0.3"
   gem "standard", "1.20.0"
   gem "ruby-next", ">= 0.7.0"
+  gem "base64"
 end