diff --git a/ports/zeroc-ice/fix-missing-functional.patch b/ports/zeroc-ice/fix-missing-functional.patch
new file mode 100644
index 0000000000..1125a3f388
--- /dev/null
+++ b/ports/zeroc-ice/fix-missing-functional.patch
@@ -0,0 +1,12 @@
+diff --git a/cpp/include/IceUtil/Timer.h b/cpp/include/IceUtil/Timer.h
+index 177a7f8..19b8c09 100644
+--- a/cpp/include/IceUtil/Timer.h
++++ b/cpp/include/IceUtil/Timer.h
+@@ -12,6 +12,7 @@
+ 
+ #include <set>
+ #include <map>
++#include <functional>
+ 
+ namespace IceUtil
+ {
diff --git a/ports/zeroc-ice/portfile.cmake b/ports/zeroc-ice/portfile.cmake
index 11637b3002..3875d3c399 100644
--- a/ports/zeroc-ice/portfile.cmake
+++ b/ports/zeroc-ice/portfile.cmake
@@ -4,7 +4,10 @@ vcpkg_from_github(
     REPO zeroc-ice/ice
     REF "v${VERSION}"
     SHA512 07d7c439fbe1f69d808d05a11f32e09cdd8d4df2a93b6f253496304e0a521d417212ae688e316b4450dae406b59d1a460025b51ecd0614c69e48d86c0a6f81c5
-    PATCHES mcppd_fix.patch no-werror.patch
+    PATCHES
+        mcppd_fix.patch
+        no-werror.patch
+        fix-missing-functional.patch
 )
 
 set(RELEASE_TRIPLET ${TARGET_TRIPLET}-rel)
diff --git a/ports/zeroc-ice/vcpkg.json b/ports/zeroc-ice/vcpkg.json
index 68b1b12c48..5e6f404e9b 100644
--- a/ports/zeroc-ice/vcpkg.json
+++ b/ports/zeroc-ice/vcpkg.json
@@ -1,7 +1,7 @@
 {
   "name": "zeroc-ice",
   "version": "3.7.9",
-  "port-version": 1,
+  "port-version": 2,
   "maintainers": "Benjamin Oldenburg <benjamin.oldenburg@ordis.co.th>",
   "description": "Comprehensive RPC framework with support for C++, CSharp, Java, JavaScript, Python and more.",
   "homepage": "https://github.com/zeroc-ice/ice",
diff --git a/versions/baseline.json b/versions/baseline.json
index 01c9693220..f49e12cfea 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -9042,7 +9042,7 @@
     },
     "zeroc-ice": {
       "baseline": "3.7.9",
-      "port-version": 1
+      "port-version": 2
     },
     "zeromq": {
       "baseline": "2023-06-20",
diff --git a/versions/z-/zeroc-ice.json b/versions/z-/zeroc-ice.json
index 29a369c2b0..f9b50d7684 100644
--- a/versions/z-/zeroc-ice.json
+++ b/versions/z-/zeroc-ice.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "dc07eee81cdf5c66efc83d606c635e722ef23d39",
+      "version": "3.7.9",
+      "port-version": 2
+    },
     {
       "git-tree": "bb449d6446b3700170a831c0b155d58be3613a26",
       "version": "3.7.9",