diff --git a/modules/openapi-generator/src/main/resources/swift5/APIHelper.mustache b/modules/openapi-generator/src/main/resources/swift5/APIHelper.mustache
index 2111f340881..d4583787564 100644
--- a/modules/openapi-generator/src/main/resources/swift5/APIHelper.mustache
+++ b/modules/openapi-generator/src/main/resources/swift5/APIHelper.mustache
@@ -62,6 +62,8 @@ import Vapor{{/useVapor}}
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/modules/openapi-generator/src/main/resources/swift5/OpenAPIDateWithoutTime.mustache b/modules/openapi-generator/src/main/resources/swift5/OpenAPIDateWithoutTime.mustache
index ff51e00b7f9..5a0c0b0d6fb 100644
--- a/modules/openapi-generator/src/main/resources/swift5/OpenAPIDateWithoutTime.mustache
+++ b/modules/openapi-generator/src/main/resources/swift5/OpenAPIDateWithoutTime.mustache
@@ -81,3 +81,18 @@ extension OpenAPIDateWithoutTime: JSONEncodable {
         return OpenISO8601DateFormatter.withoutTime.string(from: self.normalizedWrappedDate())
     }
 }
+
+extension OpenAPIDateWithoutTime: RawRepresentable {
+    public typealias RawValue = String
+    public init?(rawValue: String) {
+        if let date = OpenISO8601DateFormatter.withoutTime.date(from: rawValue) {
+            self.init(wrappedDate: date)
+        } else {
+            return nil
+        }
+    }
+
+    public var rawValue: String {
+        OpenISO8601DateFormatter.withoutTime.string(from: normalizedWrappedDate())
+    }
+}
\ No newline at end of file
diff --git a/samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/OpenAPIDateWithoutTime.swift b/samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/OpenAPIDateWithoutTime.swift
index 3cbc5a18912..57f3ecca372 100644
--- a/samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/OpenAPIDateWithoutTime.swift
+++ b/samples/client/petstore/swift5/alamofireLibrary/PetstoreClient/Classes/OpenAPIs/OpenAPIDateWithoutTime.swift
@@ -81,3 +81,18 @@ extension OpenAPIDateWithoutTime: JSONEncodable {
         return OpenISO8601DateFormatter.withoutTime.string(from: self.normalizedWrappedDate())
     }
 }
+
+extension OpenAPIDateWithoutTime: RawRepresentable {
+    public typealias RawValue = String
+    public init?(rawValue: String) {
+        if let date = OpenISO8601DateFormatter.withoutTime.date(from: rawValue) {
+            self.init(wrappedDate: date)
+        } else {
+            return nil
+        }
+    }
+
+    public var rawValue: String {
+        OpenISO8601DateFormatter.withoutTime.string(from: normalizedWrappedDate())
+    }
+}
\ No newline at end of file
diff --git a/samples/client/petstore/swift5/anycodableLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/anycodableLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/anycodableLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/anycodableLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 0859be7e994..cf437d75dec 100644
--- a/samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ internal struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/APIHelper.swift b/samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/APIHelper.swift
+++ b/samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/validation/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/validation/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/validation/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/validation/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }
diff --git a/samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/APIHelper.swift b/samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
index 6dd1b44cb36..7c975bb6c9b 100644
--- a/samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
+++ b/samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/APIHelper.swift
@@ -61,6 +61,8 @@ public struct APIHelper {
             return collection
                 .compactMap { value in convertAnyToString(value) }
                 .joined(separator: ",")
+        } else if let value = source as? any RawRepresentable {
+            return "\(value.rawValue)"
         }
         return source
     }