diff --git a/aqua/qt5/Portfile b/aqua/qt5/Portfile
index 81a786198f9ce..be8d10a310eb8 100644
--- a/aqua/qt5/Portfile
+++ b/aqua/qt5/Portfile
@@ -52,14 +52,14 @@ master_sites        \
 # latest qtwebengine 5.15.x releases are only tagged on git
 if { ${subport} in [list "${name}-qtwebengine" "${name}-qtwebengine-docs"] } {
 
-    version         5.15.17
+    version         5.15.18
     # set revision in module info below
 
     # fetch archives generated by GitHub mirrors: repository uses submodule qtwebengine-chromium
     # which has to be fetched separately and extracted into src/3rdparty
     set qtwebengine_ref v${version}-lts
     # keep this ref synchronized with qt5-qtwebengine-gn to allow distfile reuse
-    set qtwebengine_chromium_ref 207c2ac45ca3386d153770c6b0d2ea2ec21ca880
+    set qtwebengine_chromium_ref 85337c28bae7d7d2c79282c4f4c92435cd7649b8
 
     distname        qtwebengine-${version}-lts
     set qtwebengine_distfile ${distname}${extract.suffix}
@@ -75,13 +75,13 @@ if { ${subport} in [list "${name}-qtwebengine" "${name}-qtwebengine-docs"] } {
        https://github.com/qt/qtwebengine-chromium/archive/${qtwebengine_chromium_ref}:tagtwo
 
     checksums       ${qtwebengine_distfile} \
-                    rmd160  cd3d0165b4f288e023a94ef986038b3f37511832 \
-                    sha256  4910b864d81d005ea57d96f7841270139ba33ab221128d29acb314416798a261 \
-                    size    3778634 \
+                    rmd160  59fd6dea1347f235024ee2c5c7f9fb67b4d14d70 \
+                    sha256  495d61af1002a1423a81a437fcc0c8ca8606d4c1082c8b4c14823a41184c4cc6 \
+                    size    3778888 \
                     ${qtwebengine_chromium_distfile} \
-                    rmd160  08467be550315e7f487514a64972dc9e4d91fd4b \
-                    sha256  725f5b35f5361ce05f225e703ae02df808a29da408af16e599b8039f4faf794f \
-                    size    463365153
+                    rmd160  e9c2365e4dab679055f12dd6c1cb04c605fcf86a \
+                    sha256  13451d9894ba3cb9e5d15b87eededfc0ced19f297e39086d90c7abfe035eab9b \
+                    size    469456308
 
     # Using system ninja: no need to extract bundled ninja
     extract.post_args-append --exclude=${distname}/ninja/
diff --git a/devel/gn-devel/Portfile b/devel/gn-devel/Portfile
index 209d60964a9fb..a224e4701ba0c 100644
--- a/devel/gn-devel/Portfile
+++ b/devel/gn-devel/Portfile
@@ -58,16 +58,16 @@ if {${subport} eq ${name}} {
     # Use same ref as qt5-qtwebengine to reuse distfile,
     # even though bundled GN has not been updated since 5.15.10 (2082566)
     # See https://github.com/qt/qtwebengine-chromium/commits/87-based/gn
-    set qtwebengine_chromium_ref 207c2ac45ca3386d153770c6b0d2ea2ec21ca880
+    set qtwebengine_chromium_ref 85337c28bae7d7d2c79282c4f4c92435cd7649b8
     fetch.type      standard
     dist_subdir     qt5
     distname        qtwebengine-chromium-${qtwebengine_chromium_ref}
 
     master_sites    https://github.com/qt/qtwebengine-chromium/archive/${qtwebengine_chromium_ref}
 
-    checksums       rmd160  08467be550315e7f487514a64972dc9e4d91fd4b \
-                    sha256  725f5b35f5361ce05f225e703ae02df808a29da408af16e599b8039f4faf794f \
-                    size    463365153
+    checksums       rmd160  e9c2365e4dab679055f12dd6c1cb04c605fcf86a \
+                    sha256  13451d9894ba3cb9e5d15b87eededfc0ced19f297e39086d90c7abfe035eab9b \
+                    size    469456308
 
     # Just extract gn; do not extract all of chromium (~2GB) or ninja
     worksrcdir      ${distname}/gn