diff --git a/ports/catch2/portfile.cmake b/ports/catch2/portfile.cmake
index 655008b993..3c7b33b58d 100644
--- a/ports/catch2/portfile.cmake
+++ b/ports/catch2/portfile.cmake
@@ -6,7 +6,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO catchorg/Catch2
     REF v${VERSION}
-    SHA512 315776b87404f390a5ef734973e059f7b9c1f8d5822e88ad2031e949ad3f98d33fa9b02f9c1cfb183a16ef34692745fe9de9e9d29a1e2a1a90dbadc49961f511
+    SHA512 313d413fe2daa070a60abe17641d112da72320a917cd96bcbda3931d4c47bbca81f669bd7724387bc63a3614112fc12ae8228043bf58a676d0191ee5b16bc7a1
     HEAD_REF devel
     PATCHES
         fix-install-path.patch
diff --git a/ports/catch2/vcpkg.json b/ports/catch2/vcpkg.json
index d6b408a88d..b41e2ba2dc 100644
--- a/ports/catch2/vcpkg.json
+++ b/ports/catch2/vcpkg.json
@@ -1,7 +1,6 @@
 {
   "name": "catch2",
-  "version-semver": "3.15.2",
-  "port-version": 1,
+  "version-semver": "3.15.3",
   "description": "A modern, C++-native, test framework for unit-tests, TDD and BDD.",
   "homepage": "https://github.com/catchorg/Catch2",
   "license": "BSL-1.0",
diff --git a/versions/baseline.json b/versions/baseline.json
index 3e894bfb16..ab622417e2 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -1629,8 +1629,8 @@
       "port-version": 0
     },
     "catch2": {
-      "baseline": "3.15.2",
-      "port-version": 1
+      "baseline": "3.15.3",
+      "port-version": 0
     },
     "cblas": {
       "baseline": "2025-10-29",
diff --git a/versions/c-/catch2.json b/versions/c-/catch2.json
index ce7ec3cd3b..02972b248d 100644
--- a/versions/c-/catch2.json
+++ b/versions/c-/catch2.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "8d9c00d2204875428610d9078d77082004ac0e52",
+      "version-semver": "3.15.3",
+      "port-version": 0
+    },
     {
       "git-tree": "c9ae6cad3ea0560a771254eef09d760f4c77acbe",
       "version-semver": "3.15.2",