diff --git a/ports/roaring/portfile.cmake b/ports/roaring/portfile.cmake
index 582d1d721d..97e5f2a9c7 100644
--- a/ports/roaring/portfile.cmake
+++ b/ports/roaring/portfile.cmake
@@ -2,7 +2,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO RoaringBitmap/CRoaring
     REF "v${VERSION}"
-    SHA512 632bdc7dd4f66a5034653ebcf17532e680a07f05456640ceea704d3b0f360b3d514a68bf513074f9f3b23e06cfa06814f0df0337003f70f33768c041bc5e82c5
+    SHA512 59fe65fb79b8d0367a3e3f80deef332487060f16cd8f92151dd6282fda9a18b15221e4a2a39b361e0e34363445a9c5c7e19a38d8218cbb273c92cc4b5ac92720
     HEAD_REF master
 )
 
diff --git a/ports/roaring/vcpkg.json b/ports/roaring/vcpkg.json
index b73c0d27c2..c650f0d1c6 100644
--- a/ports/roaring/vcpkg.json
+++ b/ports/roaring/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "roaring",
-  "version": "4.1.3",
+  "version": "4.2.1",
   "description": "A better compressed bitset in C (and C++)",
   "homepage": "https://github.com/RoaringBitmap/CRoaring",
   "license": "Apache-2.0 OR MIT",
diff --git a/versions/baseline.json b/versions/baseline.json
index 9476474008..5913c10ba8 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -7917,7 +7917,7 @@
       "port-version": 1
     },
     "roaring": {
-      "baseline": "4.1.3",
+      "baseline": "4.2.1",
       "port-version": 0
     },
     "robin-hood-hashing": {
diff --git a/versions/r-/roaring.json b/versions/r-/roaring.json
index 60e629a824..21be1a7548 100644
--- a/versions/r-/roaring.json
+++ b/versions/r-/roaring.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "4f909ea11609b7ecc39adb23a0397a33b30ec669",
+      "version": "4.2.1",
+      "port-version": 0
+    },
     {
       "git-tree": "3d86b5e35bc1f6655fe75db03d7ed895f1050831",
       "version": "4.1.3",