diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 3526d21..aa843c9 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -24,9 +24,9 @@ jobs:
         os:
           - ubuntu
         ruby:
-          - "3.2"
+          - "3.3"
         gemfile:
-          - gemfiles/rspec_3_12.gemfile
+          - gemfiles/rspec_3_13.gemfile
     env:
       BUNDLE_GEMFILE: ${{ matrix.gemfile }}
       COVERALLS: true
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 7948d49..5797513 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -27,6 +27,7 @@ jobs:
           - "3.0"
           - "3.1"
           - "3.2"
+          - "3.3"
         gemfile:
           - gemfiles/rspec_3_4.gemfile
           - gemfiles/rspec_3_5.gemfile
@@ -37,12 +38,13 @@ jobs:
           - gemfiles/rspec_3_10.gemfile
           - gemfiles/rspec_3_11.gemfile
           - gemfiles/rspec_3_12.gemfile
+          - gemfiles/rspec_3_13.gemfile
         allow_failures:
           - false
         include:
           - os: ubuntu
             ruby: ruby-head
-            gemfile: gemfiles/rspec_3_12.gemfile
+            gemfile: gemfiles/rspec_3_13.gemfile
             allow_failures: true
     env:
       BUNDLE_GEMFILE: "${{ matrix.gemfile }}"
diff --git a/Appraisals b/Appraisals
index b595ca3..d1d3594 100644
--- a/Appraisals
+++ b/Appraisals
@@ -34,3 +34,7 @@ end
 appraise "rspec_3_12" do
   gem "rspec", "~> 3.12.0"
 end
+
+appraise "rspec_3_13" do
+  gem "rspec", "~> 3.13.0"
+end
diff --git a/gemfiles/rspec_3_13.gemfile b/gemfiles/rspec_3_13.gemfile
new file mode 100644
index 0000000..be287d5
--- /dev/null
+++ b/gemfiles/rspec_3_13.gemfile
@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "rspec", "~> 3.13.0"
+
+gemspec path: "../"