diff --git a/.evergreen/config/generated/build/build-libmongoc.yml b/.evergreen/config/generated/build/build-libmongoc.yml
index 942a73d10..7317e94e6 100644
--- a/.evergreen/config/generated/build/build-libmongoc.yml
+++ b/.evergreen/config/generated/build/build-libmongoc.yml
@@ -12,7 +12,7 @@ tasks:
       - func: "compile driver"
         vars:
           PHP_VERSION: "8.3"
-          LIBMONGOC_VERSION: "1.28.0"
+          LIBMONGOC_VERSION: "1.28.1"
       - func: "upload build"
 
   - name: "build-php-8.3-libmongoc-next-stable"
diff --git a/.evergreen/config/templates/build/build-libmongoc.yml b/.evergreen/config/templates/build/build-libmongoc.yml
index 366cb20fe..4f268ce66 100644
--- a/.evergreen/config/templates/build/build-libmongoc.yml
+++ b/.evergreen/config/templates/build/build-libmongoc.yml
@@ -10,7 +10,7 @@
       - func: "compile driver"
         vars:
           PHP_VERSION: "%phpVersion%"
-          LIBMONGOC_VERSION: "1.28.0"
+          LIBMONGOC_VERSION: "1.28.1"
       - func: "upload build"
 
   - name: "build-php-%phpVersion%-libmongoc-next-stable"
diff --git a/config.m4 b/config.m4
index 28e8ddae6..389d38157 100644
--- a/config.m4
+++ b/config.m4
@@ -276,7 +276,7 @@ if test "$PHP_MONGODB" != "no"; then
   PHP_MONGODB_MONGOCRYPT_VERSION_STRING="None"
 
   if test "$PHP_MONGODB_SYSTEM_LIBS" != "no"; then
-    PKG_CHECK_MODULES([PHP_MONGODB_BSON], [libbson-1.0 >= 1.28.0], [
+    PKG_CHECK_MODULES([PHP_MONGODB_BSON], [libbson-1.0 >= 1.28.1], [
       PHP_MONGODB_BSON_VERSION=`$PKG_CONFIG libbson-1.0 --modversion`
       PHP_MONGODB_BSON_VERSION_STRING="System ($PHP_MONGODB_BSON_VERSION)"
 
@@ -284,10 +284,10 @@ if test "$PHP_MONGODB" != "no"; then
       PHP_EVAL_LIBLINE($PHP_MONGODB_BSON_LIBS, MONGODB_SHARED_LIBADD)
       AC_DEFINE(HAVE_SYSTEM_LIBBSON, 1, [Use system libbson])
     ],[
-      AC_MSG_ERROR([Could not find system library for libbson >= 1.28.0])
+      AC_MSG_ERROR([Could not find system library for libbson >= 1.28.1])
     ])
 
-    PKG_CHECK_MODULES([PHP_MONGODB_MONGOC], [libmongoc-1.0 >= 1.28.0], [
+    PKG_CHECK_MODULES([PHP_MONGODB_MONGOC], [libmongoc-1.0 >= 1.28.1], [
       PHP_MONGODB_BSON_VERSION=`$PKG_CONFIG libbson-1.0 --modversion`
       PHP_MONGODB_BSON_VERSION_STRING="System ($PHP_MONGODB_BSON_VERSION)"
 
@@ -295,7 +295,7 @@ if test "$PHP_MONGODB" != "no"; then
       PHP_EVAL_LIBLINE($PHP_MONGODB_MONGOC_LIBS, MONGODB_SHARED_LIBADD)
       AC_DEFINE(HAVE_SYSTEM_LIBMONGOC, 1, [Use system libmongoc])
     ],[
-      AC_MSG_ERROR(Could not find system library for libmongoc >= 1.28.0)
+      AC_MSG_ERROR(Could not find system library for libmongoc >= 1.28.1)
     ])
 
     if test "$PHP_MONGODB_CLIENT_SIDE_ENCRYPTION" != "no"; then
diff --git a/sbom.json b/sbom.json
index 7319749c7..11c0e862b 100644
--- a/sbom.json
+++ b/sbom.json
@@ -19,22 +19,22 @@
       "version": "1.11.0"
     },
     {
-      "bom-ref": "pkg:github/mongodb/mongo-c-driver@1.28.0",
+      "bom-ref": "pkg:github/mongodb/mongo-c-driver@1.28.1",
       "externalReferences": [
         {
           "type": "distribution",
-          "url": "https://github.com/mongodb/mongo-c-driver/archive/refs/tags/1.28.0.tar.gz"
+          "url": "https://github.com/mongodb/mongo-c-driver/archive/refs/tags/1.28.1.tar.gz"
         },
         {
           "type": "website",
-          "url": "https://github.com/mongodb/mongo-c-driver/tree/1.28.0"
+          "url": "https://github.com/mongodb/mongo-c-driver/tree/1.28.1"
         }
       ],
       "group": "mongodb",
       "name": "mongo-c-driver",
-      "purl": "pkg:github/mongodb/mongo-c-driver@1.28.0",
+      "purl": "pkg:github/mongodb/mongo-c-driver@1.28.1",
       "type": "library",
-      "version": "1.28.0"
+      "version": "1.28.1"
     }
   ],
   "dependencies": [
@@ -42,11 +42,11 @@
       "ref": "pkg:github/mongodb/libmongocrypt@1.11.0"
     },
     {
-      "ref": "pkg:github/mongodb/mongo-c-driver@1.28.0"
+      "ref": "pkg:github/mongodb/mongo-c-driver@1.28.1"
     }
   ],
   "metadata": {
-    "timestamp": "2024-09-20T07:58:30.627473+00:00",
+    "timestamp": "2024-10-16T08:27:04.343416+00:00",
     "tools": [
       {
         "externalReferences": [
@@ -90,7 +90,7 @@
     ]
   },
   "serialNumber": "urn:uuid:acb30d08-ee47-4ff0-b301-d66ef1f54082",
-  "version": 4,
+  "version": 5,
   "$schema": "http://cyclonedx.org/schema/bom-1.5.schema.json",
   "bomFormat": "CycloneDX",
   "specVersion": "1.5"
diff --git a/src/LIBMONGOC_VERSION_CURRENT b/src/LIBMONGOC_VERSION_CURRENT
index cfc730712..450a687b2 100644
--- a/src/LIBMONGOC_VERSION_CURRENT
+++ b/src/LIBMONGOC_VERSION_CURRENT
@@ -1 +1 @@
-1.28.0
+1.28.1
diff --git a/src/libmongoc b/src/libmongoc
index a463a46c3..97f166d8d 160000
--- a/src/libmongoc
+++ b/src/libmongoc
@@ -1 +1 @@
-Subproject commit a463a46c38cb6b552f2da4b3ae63e393dfe0a9a6
+Subproject commit 97f166d8d784d6096d48ba288f98b48028cdfe8b