diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae136643..b2187fec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -51,7 +51,8 @@ CHANGELOG
   For `InvalidRequestException`, use `code()`, `httpStatus()`, and `uri()`
   instead of `getCode()`, `getHttpStatus()`, and `getUri()`. No deprecated
   helper methods were added.
-* Added `CREDIT_APPLICATION` and `FUND_TRANSFER` to the `Event.Type` enum.
+* Added `CREDIT_APPLICATION`, `FUND_TRANSFER`, and `SIM_SWAP` to the
+  `Event.Type` enum.
 * Added the input `/event/party`. This is the party submitting the
   transaction. You may provide this using the `party` method on
   `Event.Builder`.
diff --git a/src/main/java/com/maxmind/minfraud/request/Event.java b/src/main/java/com/maxmind/minfraud/request/Event.java
index faa93e98..1ece32fd 100644
--- a/src/main/java/com/maxmind/minfraud/request/Event.java
+++ b/src/main/java/com/maxmind/minfraud/request/Event.java
@@ -194,6 +194,10 @@ public enum Type {
          * A referral was made
          */
         REFERRAL,
+        /**
+         * A SIM card was swapped
+         */
+        SIM_SWAP,
         /**
          * A survey was completed
          */
diff --git a/src/test/java/com/maxmind/minfraud/request/EventTest.java b/src/test/java/com/maxmind/minfraud/request/EventTest.java
index da2211cf..bd305acb 100644
--- a/src/test/java/com/maxmind/minfraud/request/EventTest.java
+++ b/src/test/java/com/maxmind/minfraud/request/EventTest.java
@@ -59,5 +59,8 @@ public void testType() {
 
         event = new Builder().type(Type.FUND_TRANSFER).build();
         assertEquals(Type.FUND_TRANSFER, event.type());
+
+        event = new Builder().type(Type.SIM_SWAP).build();
+        assertEquals(Type.SIM_SWAP, event.type());
     }
 }