diff --git a/ruby-jwt.gemspec b/ruby-jwt.gemspec
index 823be024..fd86c450 100644
--- a/ruby-jwt.gemspec
+++ b/ruby-jwt.gemspec
@@ -30,5 +30,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'codacy-coverage'
   spec.add_development_dependency 'rbnacl'
   # RSASSA-PSS support provided by OpenSSL +2.1
-  spec.add_development_dependency 'openssl', '~> 2.1'
+  # spec.add_development_dependency 'openssl', '~> 2.1'
 end
diff --git a/spec/integration/readme_examples_spec.rb b/spec/integration/readme_examples_spec.rb
index a3351699..3c3b32fd 100644
--- a/spec/integration/readme_examples_spec.rb
+++ b/spec/integration/readme_examples_spec.rb
@@ -57,17 +57,19 @@
       ]
     end
 
-    it 'RSASSA-PSS' do
-      rsa_private = OpenSSL::PKey::RSA.generate 2048
-      rsa_public = rsa_private.public_key
-
-      token = JWT.encode payload, rsa_private, 'PS256'
-      decoded_token = JWT.decode token, rsa_public, true, algorithm: 'PS256'
-
-      expect(decoded_token).to eq [
-        { 'data' => 'test' },
-        { 'alg' => 'PS256' }
-      ]
+    if RUBY_VERSION >= '2.3' # Older rubies don't support the openssl 2.1 gem
+      it 'RSASSA-PSS' do
+        rsa_private = OpenSSL::PKey::RSA.generate 2048
+        rsa_public = rsa_private.public_key
+
+        token = JWT.encode payload, rsa_private, 'PS256'
+        decoded_token = JWT.decode token, rsa_public, true, algorithm: 'PS256'
+
+        expect(decoded_token).to eq [
+          { 'data' => 'test' },
+          { 'alg' => 'PS256' }
+        ]
+      end
     end
   end