diff --git a/src/address/AddressError.ts b/src/address/AddressError.ts
new file mode 100644
index 0000000..b8ee9c3
--- /dev/null
+++ b/src/address/AddressError.ts
@@ -0,0 +1,5 @@
+import { CollectionError } from '../collection/index.js';
+
+export class AddressError extends CollectionError {
+  // NOOP
+}
diff --git a/src/address/index.ts b/src/address/index.ts
index d088518..2780f51 100644
--- a/src/address/index.ts
+++ b/src/address/index.ts
@@ -1,5 +1,6 @@
 export * from './mock/index.js';
 export * from './Address.js';
+export * from './AddressError.js';
 export * from './ImmutableAddress.js';
 export * from './MutableAddress.js';
 export * from './ReadonlyAddress.js';
diff --git a/src/dictionary/DictionaryError.ts b/src/dictionary/DictionaryError.ts
new file mode 100644
index 0000000..49199a8
--- /dev/null
+++ b/src/dictionary/DictionaryError.ts
@@ -0,0 +1,5 @@
+import { CollectionError } from '../collection/index.js';
+
+export class DictionaryError extends CollectionError {
+  // NOOP
+}
diff --git a/src/dictionary/index.ts b/src/dictionary/index.ts
index d692a1d..f09b24b 100644
--- a/src/dictionary/index.ts
+++ b/src/dictionary/index.ts
@@ -1,5 +1,6 @@
 export * from './mock/index.js';
+export * from './Dictionary.js';
+export * from './DictionaryError.js';
 export * from './ImmutableDictionary.js';
 export * from './MutableDictionary.js';
-export * from './Dictionary.js';
 export * from './ReadonlyDictionary.js';