diff --git a/lib/observable/instrumenter.rb b/lib/observable/instrumenter.rb
index 6ac0a75..f50519e 100644
--- a/lib/observable/instrumenter.rb
+++ b/lib/observable/instrumenter.rb
@@ -52,7 +52,7 @@ def extract_namespace_from_path(file_path)
       return "UnknownClass" if file_name.empty?
 
       file_name.split("_").map(&:capitalize).join
-    rescue
+    rescue StandardError
       "UnknownClass"
     end
 
@@ -65,14 +65,14 @@ def extract_actual_class_name
           else
             caller_self.class.name
           end
-        rescue
+        rescue StandardError
           extract_namespace_from_path(@caller_binding.eval("__FILE__"))
         end
       else
         caller_location = find_caller_location
         extract_namespace_from_path(caller_location.path)
       end
-    rescue
+    rescue StandardError
       "UnknownClass"
     end
 
@@ -82,7 +82,7 @@ def determine_if_class_method
       begin
         caller_self = @caller_binding.eval("self")
         caller_self.is_a?(Class)
-      rescue
+      rescue StandardError
         false
       end
     end
@@ -353,7 +353,7 @@ def extract_from_binding
         extract_local_variables_with_numeric_indexing(args)
 
         args
-      rescue
+      rescue StandardError
         {}
       end
 
diff --git a/lib/observable/structured_error.rb b/lib/observable/structured_error.rb
index b3484da..247e5b7 100644
--- a/lib/observable/structured_error.rb
+++ b/lib/observable/structured_error.rb
@@ -45,7 +45,7 @@ def self.safe_message(error)
       else
         ""
       end
-    rescue
+    rescue StandardError
       ""
     end
 
@@ -63,7 +63,7 @@ def self.safe_type(error)
       end
 
       error.class.name
-    rescue
+    rescue StandardError
       error.class.name
     end
 
@@ -77,7 +77,7 @@ def self.safe_context(error)
       else
         {}
       end
-    rescue
+    rescue StandardError
       {}
     end
 
@@ -92,7 +92,7 @@ def self.try_custom_converter(error)
 
       result = begin
         converter.call(error)
-      rescue
+      rescue StandardError
         nil
       end