diff --git a/.ameba.yml b/.ameba.yml
index ef211735..31184c94 100644
--- a/.ameba.yml
+++ b/.ameba.yml
@@ -3,6 +3,6 @@ ignored_paths:
 
 Metrics/CyclomaticComplexity:
   Description: Disallows methods with a cyclomatic complexity higher than `MaxComplexity`
-  MaxComplexity: 30
+  MaxComplexity: 35
   Enabled: true
   Severity: Warning
diff --git a/shard.yml b/shard.yml
index 4056ba2a..ac68de28 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,5 @@
 name: noir
-version: 0.7.0
+version: 0.7.1
 
 authors:
   - hahwul <hahwul@gmail.com>
diff --git a/spec/functional_test/fixtures/oas3/doc.yml b/spec/functional_test/fixtures/oas3/common/doc.yml
similarity index 100%
rename from spec/functional_test/fixtures/oas3/doc.yml
rename to spec/functional_test/fixtures/oas3/common/doc.yml
diff --git a/spec/functional_test/fixtures/oas3/no_servers/doc_no_servers.yml b/spec/functional_test/fixtures/oas3/no_servers/doc_no_servers.yml
new file mode 100644
index 00000000..2be08d53
--- /dev/null
+++ b/spec/functional_test/fixtures/oas3/no_servers/doc_no_servers.yml
@@ -0,0 +1,19 @@
+openapi: 3.0.0
+info:
+  title: Gem Store API
+  version: 1.0.0
+  description: Sample API for managing pets in a Gem store.
+paths:
+  /gems:
+    get:
+      summary: Get a list of pets
+      responses:
+        '200':
+          description: A list of pets
+          content:
+            application/json:
+              example:
+                - id: 1
+                  name: Ruby
+                - id: 2
+                  name: Crystal
diff --git a/spec/functional_test/testers/oas3_spec.cr b/spec/functional_test/testers/oas3_spec.cr
index c05ef9f2..517bc17d 100644
--- a/spec/functional_test/testers/oas3_spec.cr
+++ b/spec/functional_test/testers/oas3_spec.cr
@@ -7,7 +7,12 @@ extected_endpoints = [
   Endpoint.new("/pets/{petId}", "PUT"),
 ]
 
-FunctionalTester.new("fixtures/oas3/", {
+FunctionalTester.new("fixtures/oas3/common/", {
   :techs     => 1,
   :endpoints => 4,
 }, extected_endpoints).test_all
+
+FunctionalTester.new("fixtures/oas3/no_servers/", {
+  :techs     => 1,
+  :endpoints => 1,
+}, nil).test_all
diff --git a/src/analyzer/analyzers/analyzer_oas3.cr b/src/analyzer/analyzers/analyzer_oas3.cr
index f65e8ed7..4eaf409f 100644
--- a/src/analyzer/analyzers/analyzer_oas3.cr
+++ b/src/analyzer/analyzers/analyzer_oas3.cr
@@ -21,13 +21,17 @@ class AnalyzerOAS3 < Analyzer
     locator = CodeLocator.instance
     oas3_json = locator.get("oas3-json")
     oas3_yaml = locator.get("oas3-yaml")
+    base_path = @url
 
     if !oas3_json.nil?
       if File.exists?(oas3_json)
         content = File.read(oas3_json, encoding: "utf-8", invalid: :skip)
         json_obj = JSON.parse(content)
 
-        base_path = get_base_path json_obj["servers"]
+        begin
+          base_path = get_base_path json_obj["servers"]
+        rescue
+        end
 
         json_obj["paths"].as_h.each do |path, path_obj|
           path_obj.as_h.each do |method, method_obj|
@@ -82,7 +86,11 @@ class AnalyzerOAS3 < Analyzer
       if File.exists?(oas3_yaml)
         content = File.read(oas3_yaml, encoding: "utf-8", invalid: :skip)
         yaml_obj = YAML.parse(content)
-        base_path = get_base_path yaml_obj["servers"]
+
+        begin
+          base_path = get_base_path yaml_obj["servers"]
+        rescue
+        end
 
         yaml_obj["paths"].as_h.each do |path, path_obj|
           path_obj.as_h.each do |method, method_obj|
diff --git a/src/noir.cr b/src/noir.cr
index 6f972582..fb99e237 100644
--- a/src/noir.cr
+++ b/src/noir.cr
@@ -6,7 +6,7 @@ require "./options.cr"
 require "./techs/techs.cr"
 
 module Noir
-  VERSION = "0.7.0"
+  VERSION = "0.7.1"
 end
 
 noir_options = default_options()