diff --git a/lib/httpx/adapters/faraday.rb b/lib/httpx/adapters/faraday.rb
index 759162a6..4d4fad31 100644
--- a/lib/httpx/adapters/faraday.rb
+++ b/lib/httpx/adapters/faraday.rb
@@ -80,27 +80,36 @@ module Faraday
             timeout_options[:connect_timeout] = sec
           end
 
-          ssl_options = {}
-
-          unless env.ssl.verify.nil?
-            ssl_options[:verify_mode] = env.ssl.verify ? OpenSSL::SSL::VERIFY_PEER : OpenSSL::SSL::VERIFY_NONE
-          end
-
-          ssl_options[:ca_file] = env.ssl.ca_file if env.ssl.ca_file
-          ssl_options[:ca_path] = env.ssl.ca_path if env.ssl.ca_path
-          ssl_options[:cert_store] = env.ssl.cert_store if env.ssl.cert_store
-          ssl_options[:cert] = env.ssl.client_cert if env.ssl.client_cert
-          ssl_options[:key] = env.ssl.client_key if env.ssl.client_key
-          ssl_options[:ssl_version] = env.ssl.version if env.ssl.version
-          ssl_options[:verify_depth] = env.ssl.verify_depth if env.ssl.verify_depth
-          ssl_options[:min_version] = env.ssl.min_version if env.ssl.min_version
-          ssl_options[:max_version] = env.ssl.max_version if env.ssl.max_version
-
           {
-            ssl: ssl_options,
+            ssl: ssl_options_from_env(env),
             timeout: timeout_options,
           }
         end
+
+        if defined?(::OpenSSL)
+          def ssl_options_from_env(env)
+            ssl_options = {}
+
+            unless env.ssl.verify.nil?
+              ssl_options[:verify_mode] = env.ssl.verify ? OpenSSL::SSL::VERIFY_PEER : OpenSSL::SSL::VERIFY_NONE
+            end
+
+            ssl_options[:ca_file] = env.ssl.ca_file if env.ssl.ca_file
+            ssl_options[:ca_path] = env.ssl.ca_path if env.ssl.ca_path
+            ssl_options[:cert_store] = env.ssl.cert_store if env.ssl.cert_store
+            ssl_options[:cert] = env.ssl.client_cert if env.ssl.client_cert
+            ssl_options[:key] = env.ssl.client_key if env.ssl.client_key
+            ssl_options[:ssl_version] = env.ssl.version if env.ssl.version
+            ssl_options[:verify_depth] = env.ssl.verify_depth if env.ssl.verify_depth
+            ssl_options[:min_version] = env.ssl.min_version if env.ssl.min_version
+            ssl_options[:max_version] = env.ssl.max_version if env.ssl.max_version
+            ssl_options
+          end
+        else
+          def ssl_options_from_env(*)
+            {}
+          end
+        end
       end
 
       include RequestMixin
diff --git a/lib/httpx/io.rb b/lib/httpx/io.rb
index 83630c28..e4bed6c9 100644
--- a/lib/httpx/io.rb
+++ b/lib/httpx/io.rb
@@ -4,4 +4,8 @@ require "socket"
 require "httpx/io/udp"
 require "httpx/io/tcp"
 require "httpx/io/unix"
-require "httpx/io/ssl"
+
+begin
+  require "httpx/io/ssl"
+rescue LoadError
+end
diff --git a/test/support/requests/plugins/follow_redirects.rb b/test/support/requests/plugins/follow_redirects.rb
index 0e5078b2..7fb92f61 100644
--- a/test/support/requests/plugins/follow_redirects.rb
+++ b/test/support/requests/plugins/follow_redirects.rb
@@ -23,6 +23,16 @@ module Requests
         verify_status(response, 304)
       end
 
+      def test_plugin_follow_redirects_relative_path
+        session = HTTPX.plugin(:follow_redirects)
+        uri = redirect_uri("../get")
+
+        redirect_response = session.get(uri)
+        body = json_body(redirect_response)
+        assert body.key?("url"), "url should be set"
+        assert body["url"] == redirect_location, "url should have been the given redirection url"
+      end
+
       def test_plugin_follow_redirects_default_max_redirects
         session = HTTPX.plugin(:follow_redirects)