diff --git a/lib/src/core/definitions/security/ace_security_scheme.dart b/lib/src/core/definitions/security/ace_security_scheme.dart
index d6dd199e..4457d1ed 100644
--- a/lib/src/core/definitions/security/ace_security_scheme.dart
+++ b/lib/src/core/definitions/security/ace_security_scheme.dart
@@ -84,7 +84,24 @@ final class AceSecurityScheme extends SecurityScheme {
 
   @override
   Map<String, dynamic> toJson() {
-    // TODO: implement toJson
-    throw UnimplementedError();
+    final result = super.toJson();
+
+    if (as != null) {
+      result["as"] = as;
+    }
+
+    if (audience != null) {
+      result["audience"] = audience;
+    }
+
+    if (scopes != null) {
+      result["scopes"] = scopes;
+    }
+
+    if (cnonce != null) {
+      result["cnonce"] = cnonce;
+    }
+
+    return result;
   }
 }
diff --git a/lib/src/core/definitions/security/apikey_security_scheme.dart b/lib/src/core/definitions/security/apikey_security_scheme.dart
index 060e0322..dfc90833 100644
--- a/lib/src/core/definitions/security/apikey_security_scheme.dart
+++ b/lib/src/core/definitions/security/apikey_security_scheme.dart
@@ -68,7 +68,15 @@ final class ApiKeySecurityScheme extends SecurityScheme {
 
   @override
   Map<String, dynamic> toJson() {
-    // TODO: implement toJson
-    throw UnimplementedError();
+    final result = <String, dynamic>{
+      "in": in_,
+      ...super.toJson(),
+    };
+
+    if (name != null) {
+      result["name"] = name;
+    }
+
+    return result;
   }
 }
diff --git a/lib/src/core/definitions/security/auto_security_scheme.dart b/lib/src/core/definitions/security/auto_security_scheme.dart
index 0e1247d1..dc9b2cd2 100644
--- a/lib/src/core/definitions/security/auto_security_scheme.dart
+++ b/lib/src/core/definitions/security/auto_security_scheme.dart
@@ -50,30 +50,4 @@ final class AutoSecurityScheme extends SecurityScheme {
 
   @override
   String get scheme => autoSecuritySchemeName;
-
-  @override
-  Map<String, dynamic> toJson() {
-    final result = <String, dynamic>{
-      "scheme": autoSecuritySchemeName,
-      ...additionalFields,
-    };
-
-    if (description != null) {
-      result["description"] = description;
-    }
-
-    if (descriptions != null) {
-      result["descriptions"] = descriptions;
-    }
-
-    if (jsonLdType != null) {
-      result["@type"] = jsonLdType;
-    }
-
-    if (proxy != null) {
-      result["proxy"] = proxy;
-    }
-
-    return result;
-  }
 }
diff --git a/lib/src/core/definitions/security/basic_security_scheme.dart b/lib/src/core/definitions/security/basic_security_scheme.dart
index 2f87ae2a..fdd0e033 100644
--- a/lib/src/core/definitions/security/basic_security_scheme.dart
+++ b/lib/src/core/definitions/security/basic_security_scheme.dart
@@ -68,7 +68,15 @@ final class BasicSecurityScheme extends SecurityScheme {
 
   @override
   Map<String, dynamic> toJson() {
-    // TODO: implement toJson
-    throw UnimplementedError();
+    final result = <String, dynamic>{
+      "in": in_,
+      ...super.toJson(),
+    };
+
+    if (name != null) {
+      result["name"] = name;
+    }
+
+    return result;
   }
 }
diff --git a/lib/src/core/definitions/security/bearer_security_scheme.dart b/lib/src/core/definitions/security/bearer_security_scheme.dart
index 161164c8..008f1e41 100644
--- a/lib/src/core/definitions/security/bearer_security_scheme.dart
+++ b/lib/src/core/definitions/security/bearer_security_scheme.dart
@@ -91,7 +91,21 @@ final class BearerSecurityScheme extends SecurityScheme {
 
   @override
   Map<String, dynamic> toJson() {
-    // TODO: implement toJson
-    throw UnimplementedError();
+    final result = <String, dynamic>{
+      "in": in_,
+      "alg": alg,
+      "format": format,
+      ...super.toJson(),
+    };
+
+    if (name != null) {
+      result["name"] = name;
+    }
+
+    if (authorization != null) {
+      result["authorization"] = authorization;
+    }
+
+    return result;
   }
 }
diff --git a/lib/src/core/definitions/security/combo_security_scheme.dart b/lib/src/core/definitions/security/combo_security_scheme.dart
index 12dc3cad..4e684f8b 100644
--- a/lib/src/core/definitions/security/combo_security_scheme.dart
+++ b/lib/src/core/definitions/security/combo_security_scheme.dart
@@ -89,7 +89,16 @@ final class ComboSecurityScheme extends SecurityScheme {
 
   @override
   Map<String, dynamic> toJson() {
-    // TODO: implement toJson
-    throw UnimplementedError();
+    final result = super.toJson();
+
+    if (oneOf != null) {
+      result["oneOf"] = oneOf;
+    }
+
+    if (allOf != null) {
+      result["allOf"] = allOf;
+    }
+
+    return result;
   }
 }
diff --git a/lib/src/core/definitions/security/digest_security_scheme.dart b/lib/src/core/definitions/security/digest_security_scheme.dart
index 943a9def..8ca10869 100644
--- a/lib/src/core/definitions/security/digest_security_scheme.dart
+++ b/lib/src/core/definitions/security/digest_security_scheme.dart
@@ -78,28 +78,11 @@ final class DigestSecurityScheme extends SecurityScheme {
   @override
   Map<String, dynamic> toJson() {
     final result = <String, dynamic>{
-      "scheme": digestSecuritySchemeName,
       "in": in_,
       "qop": qop,
-      ...additionalFields,
+      ...super.toJson(),
     };
 
-    if (description != null) {
-      result["description"] = description;
-    }
-
-    if (descriptions != null) {
-      result["descriptions"] = descriptions;
-    }
-
-    if (jsonLdType != null) {
-      result["@type"] = jsonLdType;
-    }
-
-    if (proxy != null) {
-      result["proxy"] = proxy;
-    }
-
     if (name != null) {
       result["name"] = name;
     }
diff --git a/lib/src/core/definitions/security/no_security_scheme.dart b/lib/src/core/definitions/security/no_security_scheme.dart
index ebb3b8c7..f1aa0456 100644
--- a/lib/src/core/definitions/security/no_security_scheme.dart
+++ b/lib/src/core/definitions/security/no_security_scheme.dart
@@ -50,30 +50,4 @@ final class NoSecurityScheme extends SecurityScheme {
 
   @override
   String get scheme => nosecSecuritySchemeName;
-
-  @override
-  Map<String, dynamic> toJson() {
-    final result = <String, dynamic>{
-      "scheme": nosecSecuritySchemeName,
-      ...additionalFields,
-    };
-
-    if (description != null) {
-      result["description"] = description;
-    }
-
-    if (descriptions != null) {
-      result["descriptions"] = descriptions;
-    }
-
-    if (jsonLdType != null) {
-      result["proxy"] = jsonLdType;
-    }
-
-    if (proxy != null) {
-      result["@type"] = proxy;
-    }
-
-    return result;
-  }
 }
diff --git a/lib/src/core/definitions/security/oauth2_security_scheme.dart b/lib/src/core/definitions/security/oauth2_security_scheme.dart
index ee195b91..c92731bc 100644
--- a/lib/src/core/definitions/security/oauth2_security_scheme.dart
+++ b/lib/src/core/definitions/security/oauth2_security_scheme.dart
@@ -95,7 +95,27 @@ final class OAuth2SecurityScheme extends SecurityScheme {
 
   @override
   Map<String, dynamic> toJson() {
-    // TODO: implement toJson
-    throw UnimplementedError();
+    final result = <String, dynamic>{
+      "flow": flow,
+      ...super.toJson(),
+    };
+
+    if (authorization != null) {
+      result["authorization"] = authorization;
+    }
+
+    if (token != null) {
+      result["token"] = token;
+    }
+
+    if (refresh != null) {
+      result["refresh"] = refresh;
+    }
+
+    if (scopes != null) {
+      result["scopes"] = scopes;
+    }
+
+    return result;
   }
 }
diff --git a/lib/src/core/definitions/security/psk_security_scheme.dart b/lib/src/core/definitions/security/psk_security_scheme.dart
index 633f4f0f..af1bcd00 100644
--- a/lib/src/core/definitions/security/psk_security_scheme.dart
+++ b/lib/src/core/definitions/security/psk_security_scheme.dart
@@ -60,26 +60,7 @@ final class PskSecurityScheme extends SecurityScheme {
 
   @override
   Map<String, dynamic> toJson() {
-    final result = <String, dynamic>{
-      "scheme": pskSecuritySchemeName,
-      ...additionalFields,
-    };
-
-    if (description != null) {
-      result["description"] = description;
-    }
-
-    if (descriptions != null) {
-      result["descriptions"] = descriptions;
-    }
-
-    if (jsonLdType != null) {
-      result["@type"] = jsonLdType;
-    }
-
-    if (proxy != null) {
-      result["proxy"] = proxy;
-    }
+    final result = super.toJson();
 
     if (identity != null) {
       result["identity"] = identity;
diff --git a/lib/src/core/definitions/security/security_scheme.dart b/lib/src/core/definitions/security/security_scheme.dart
index a132c6e2..9e620b3f 100644
--- a/lib/src/core/definitions/security/security_scheme.dart
+++ b/lib/src/core/definitions/security/security_scheme.dart
@@ -45,5 +45,29 @@ abstract base class SecurityScheme {
 
   /// Converts this [SecurityScheme] instance into a [Map] that can be easily
   /// converted to JSON.
-  Map<String, dynamic> toJson();
+  @mustCallSuper
+  Map<String, dynamic> toJson() {
+    final result = <String, dynamic>{
+      "scheme": scheme,
+      ...additionalFields,
+    };
+
+    if (description != null) {
+      result["description"] = description;
+    }
+
+    if (descriptions != null) {
+      result["descriptions"] = descriptions;
+    }
+
+    if (jsonLdType != null) {
+      result["@type"] = jsonLdType;
+    }
+
+    if (proxy != null) {
+      result["proxy"] = proxy;
+    }
+
+    return result;
+  }
 }