diff --git a/go.mod b/go.mod
index 6de5bd6b53..bd068b5d17 100644
--- a/go.mod
+++ b/go.mod
@@ -25,7 +25,7 @@ require (
 	knative.dev/eventing v0.38.1-0.20230822134255-a2e2aa3d515d
 	knative.dev/hack v0.0.0-20230818155117-9cc05a31e8c0
 	knative.dev/pkg v0.0.0-20230821102121-81e4ee140363
-	knative.dev/serving v0.38.1-0.20230822041500-587de3dbbcc3
+	knative.dev/serving v0.38.1-0.20230823180656-90046c381ddc
 	sigs.k8s.io/yaml v1.3.0
 )
 
@@ -139,7 +139,7 @@ require (
 	k8s.io/gengo v0.0.0-20221011193443-fad74ee6edd9 // indirect
 	k8s.io/klog/v2 v2.80.2-0.20221028030830-9ae4992afb54 // indirect
 	k8s.io/kube-openapi v0.0.0-20221012153701-172d655c2280 // indirect
-	knative.dev/networking v0.0.0-20230817140742-4bfcc9fb6012 // indirect
+	knative.dev/networking v0.0.0-20230822003854-1d7920d27b9e // indirect
 	sigs.k8s.io/controller-runtime v0.7.2 // indirect
 	sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 // indirect
 	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
diff --git a/go.sum b/go.sum
index 9cb4b12148..75f0dd17d4 100644
--- a/go.sum
+++ b/go.sum
@@ -1401,12 +1401,12 @@ knative.dev/eventing v0.38.1-0.20230822134255-a2e2aa3d515d h1:K8EcKbY3POUZ+D7uek
 knative.dev/eventing v0.38.1-0.20230822134255-a2e2aa3d515d/go.mod h1:InEIckt+XICxXXYy2P4kqEJ4nMDXqI1iCUZ84vGDRbM=
 knative.dev/hack v0.0.0-20230818155117-9cc05a31e8c0 h1:n9YEGYuoj31pAkhGlNL+xTQAeXKYTLeMmIZLWA9fAeo=
 knative.dev/hack v0.0.0-20230818155117-9cc05a31e8c0/go.mod h1:yk2OjGDsbEnQjfxdm0/HJKS2WqTLEFg/N6nUs6Rqx3Q=
-knative.dev/networking v0.0.0-20230817140742-4bfcc9fb6012 h1:eaeZPgJzsJMnJaekbG8TYAfF/PUX8Xmdb8Oqnb+QO1k=
-knative.dev/networking v0.0.0-20230817140742-4bfcc9fb6012/go.mod h1:iGxfnvUJ3gGqtKnoOXhLzNCZeGxVnH4xdClYuh5vB4o=
+knative.dev/networking v0.0.0-20230822003854-1d7920d27b9e h1:9CcYOXJKJSiZ5aeNm0AJZ1DjOlisadZhMSa/O/hOSmE=
+knative.dev/networking v0.0.0-20230822003854-1d7920d27b9e/go.mod h1:1voQlQD0tuot6U3Kldw+uch33mK2LV85fi3MfbV0CP8=
 knative.dev/pkg v0.0.0-20230821102121-81e4ee140363 h1:TI2hMwTM5Bl+yaWu1gN5bXAHSvc+FtH9cqm3NzmDBtY=
 knative.dev/pkg v0.0.0-20230821102121-81e4ee140363/go.mod h1:dA3TdhFTRm4KmmpvfknpGV43SbGNFkLHySjC8/+NczM=
-knative.dev/serving v0.38.1-0.20230822041500-587de3dbbcc3 h1:BcZXAXL2nX2K5hlZyVWsEVxKqeHEE3ZhxmOT1kEm1lU=
-knative.dev/serving v0.38.1-0.20230822041500-587de3dbbcc3/go.mod h1:rp9Da0cRpKaH0mjDnyhzTltWgijtN6BUwoH/fuTmKu4=
+knative.dev/serving v0.38.1-0.20230823180656-90046c381ddc h1:FuY+e4ZeVFQsNebmTK3XutBzSuVPXK2Pi7P4YUUPYOc=
+knative.dev/serving v0.38.1-0.20230823180656-90046c381ddc/go.mod h1:/q/HksDFhDiPdwOiyFdDE464YF+GjOYL22x7q57NPB0=
 nhooyr.io/websocket v1.8.6/go.mod h1:B70DZP8IakI65RVQ51MsWP/8jndNma26DVA/nFSCgW0=
 pgregory.net/rapid v1.0.0 h1:iQaM2w5PZ6xvt6x7hbd7tiDS+nk7YPp5uCaEba+T/F4=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
diff --git a/vendor/knative.dev/serving/test/e2e-common.sh b/vendor/knative.dev/serving/test/e2e-common.sh
index 242d984b69..a458026650 100644
--- a/vendor/knative.dev/serving/test/e2e-common.sh
+++ b/vendor/knative.dev/serving/test/e2e-common.sh
@@ -19,44 +19,44 @@
 source "$(dirname "${BASH_SOURCE[0]}")/../vendor/knative.dev/hack/e2e-tests.sh"
 source "$(dirname "${BASH_SOURCE[0]}")/e2e-networking-library.sh"
 
-export CERT_MANAGER_VERSION="latest"
+export CERT_MANAGER_VERSION=${CERT_MANAGER_VERSION:-"latest"}
 # Since default is istio, make default ingress as istio
 export INGRESS_CLASS=${INGRESS_CLASS:-istio.ingress.networking.knative.dev}
-export ISTIO_VERSION="latest"
-export KOURIER_VERSION=""
-export CONTOUR_VERSION=""
-export GATEWAY_API_VERSION=""
-export CERTIFICATE_CLASS=""
+export ISTIO_VERSION=${ISTIO_VERSION:-"latest"}
+export KOURIER_VERSION=${KOURIER_VERSION:-""}
+export CONTOUR_VERSION=${CONTOUR_VERSION:-""}
+export GATEWAY_API_VERSION=${GATEWAY_API_VERSION:-""}
+export CERTIFICATE_CLASS=${CERTIFICATE_CLASS:-""}
 # Only build linux/amd64 bit images
 export KO_FLAGS="${KO_FLAGS:---platform=linux/amd64}"
 
-export RUN_HTTP01_AUTO_TLS_TESTS=0
-export HTTPS=0
-export SHORT=0
-export ENABLE_HA=0
+export RUN_HTTP01_AUTO_TLS_TESTS=${RUN_HTTP01_AUTO_TLS_TESTS:-0}
+export HTTPS=${HTTPS:-0}
+export SHORT=${SHORT:-0}
+export ENABLE_HA=${ENABLE_HA:-0}
 export ENABLE_TLS=${ENABLE_TLS:-0}
-export MESH=0
+export MESH=${MESH:-0}
 export AMBIENT=${AMBIENT:-0}
-export PERF=0
+export PERF=${PERF:-0}
 export KIND=${KIND:-0}
 export CLUSTER_DOMAIN=${CLUSTER_DOMAIN:-cluster.local}
 
 # List of custom YAMLs to install, if specified (space-separated).
-export INSTALL_CUSTOM_YAMLS=""
-export INSTALL_SERVING_VERSION="HEAD"
-export INSTALL_ISTIO_VERSION="HEAD"
+export INSTALL_CUSTOM_YAMLS=${INSTALL_CUSTOM_YAMLS:-""}
+export INSTALL_SERVING_VERSION=${INSTALL_SERVING_VERSION:-"HEAD"}
+export INSTALL_ISTIO_VERSION=${INSTALL_ISTIO_VERSION:-"HEAD"}
 export YTT_FILES=()
 
 export TMP_DIR="${TMP_DIR:-$(mktemp -d -t ci-$(date +%Y-%m-%d-%H-%M-%S)-XXXXXXXXXX)}"
 
-readonly E2E_YAML_DIR="${TMP_DIR}/e2e-yaml"
+readonly E2E_YAML_DIR=${E2E_YAML_DIR:-"${TMP_DIR}/e2e-yaml"}
 
 # This the namespace used to install Knative Serving. Use generated UUID as namespace.
 export SYSTEM_NAMESPACE="${SYSTEM_NAMESPACE:-$(uuidgen | tr 'A-Z' 'a-z')}"
 
 # Keep this in sync with test/ha/ha.go
-readonly REPLICAS=3
-readonly BUCKETS=10
+readonly REPLICAS=${REPLICAS:-3}
+readonly BUCKETS=${BUCKETS:-10}
 
 export PVC=${PVC:-1}
 export QUOTA=${QUOTA:-1}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index a0f58cbe00..36566693a4 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -1353,7 +1353,7 @@ knative.dev/eventing/test/upgrade/prober/wathola/sender
 ## explicit; go 1.18
 knative.dev/hack
 knative.dev/hack/shell
-# knative.dev/networking v0.0.0-20230817140742-4bfcc9fb6012
+# knative.dev/networking v0.0.0-20230822003854-1d7920d27b9e
 ## explicit; go 1.18
 knative.dev/networking/pkg
 knative.dev/networking/pkg/apis/networking
@@ -1448,7 +1448,7 @@ knative.dev/pkg/webhook
 knative.dev/pkg/webhook/certificates
 knative.dev/pkg/webhook/certificates/resources
 knative.dev/pkg/webhook/resourcesemantics/conversion
-# knative.dev/serving v0.38.1-0.20230822041500-587de3dbbcc3
+# knative.dev/serving v0.38.1-0.20230823180656-90046c381ddc
 ## explicit; go 1.18
 knative.dev/serving/pkg/apis/autoscaling
 knative.dev/serving/pkg/apis/autoscaling/v1alpha1