diff --git a/ports/quantlib/portfile.cmake b/ports/quantlib/portfile.cmake
index bee507fe3a..ad00681202 100644
--- a/ports/quantlib/portfile.cmake
+++ b/ports/quantlib/portfile.cmake
@@ -2,7 +2,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO lballabio/QuantLib
     REF "v${VERSION}"
-    SHA512 40a306129c48f575ce81a91f00b40c5a67fa72b5c8067f11e210d16e88f8fa188e1e957f2f369913d810819f2650f1e02b517cfc2de5ed1ad2b31d7b8f9a6e4d
+    SHA512 37147f7180b09ab2cfc49400255ffab470e5f3b07cf8eade0f9fe2b20a6bbc3c5c75deeb3b6beca698f62abb2114075fb4e70e43ef936028b9e30f6338dac785
     HEAD_REF master
 )
 
diff --git a/ports/quantlib/vcpkg.json b/ports/quantlib/vcpkg.json
index 07ea0148c3..ff3c41b235 100644
--- a/ports/quantlib/vcpkg.json
+++ b/ports/quantlib/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "quantlib",
-  "version": "1.31",
+  "version": "1.31.1",
   "description": "The QuantLib C++ library",
   "homepage": "https://www.quantlib.org/",
   "license": "BSD-3-Clause",
diff --git a/versions/baseline.json b/versions/baseline.json
index 37330fe5ff..0fecb24790 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -6973,7 +6973,7 @@
       "port-version": 0
     },
     "quantlib": {
-      "baseline": "1.31",
+      "baseline": "1.31.1",
       "port-version": 0
     },
     "quaternions": {
diff --git a/versions/q-/quantlib.json b/versions/q-/quantlib.json
index 5813f851ac..7fe1fdb0b0 100644
--- a/versions/q-/quantlib.json
+++ b/versions/q-/quantlib.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "eb8bae6053207228b42d957b8a2e0d187f4173e7",
+      "version": "1.31.1",
+      "port-version": 0
+    },
     {
       "git-tree": "8ac6c8c86ff5e72374f06da30e08bea335041ee6",
       "version": "1.31",