diff --git a/UPSTREAM_PROJECTS.yaml b/UPSTREAM_PROJECTS.yaml
index 3672807cbb..d621e4c142 100644
--- a/UPSTREAM_PROJECTS.yaml
+++ b/UPSTREAM_PROJECTS.yaml
@@ -85,7 +85,7 @@ projects:
     repos:
       - name: emissary
         versions:
-          - tag: v3.9.1
+          - tag: v3.10.0-dev
             go_version: "1.21"
   - org: envoyproxy
     repos:
diff --git a/projects/emissary-ingress/emissary/ATTRIBUTION.txt b/projects/emissary-ingress/emissary/ATTRIBUTION.txt
index 1c31ad980a..646205d642 100644
--- a/projects/emissary-ingress/emissary/ATTRIBUTION.txt
+++ b/projects/emissary-ingress/emissary/ATTRIBUTION.txt
@@ -11,10 +11,10 @@ https://github.com/datawire/dlib
 ** github.com/docker/distribution; version v2.8.2+incompatible --
 https://github.com/distribution/distribution
 
-** github.com/emissary-ingress/emissary/v3; version v3.9.1 --
+** github.com/emissary-ingress/emissary/v3; version v3.10.0-dev --
 https://github.com/emissary-ingress/emissary/v3
 
-** github.com/emissary-ingress/emissary/v3/pkg/envoy-control-plane; version v3.9.1 --
+** github.com/emissary-ingress/emissary/v3/pkg/envoy-control-plane; version v3.10.0-dev --
 https://github.com/emissary-ingress/emissary/v3
 
 ** github.com/envoyproxy/protoc-gen-validate/validate; version v1.0.2 --
diff --git a/projects/emissary-ingress/emissary/CHECKSUMS b/projects/emissary-ingress/emissary/CHECKSUMS
index 22bbf33902..f7a18b8b67 100644
--- a/projects/emissary-ingress/emissary/CHECKSUMS
+++ b/projects/emissary-ingress/emissary/CHECKSUMS
@@ -1,12 +1,6 @@
-3d5392360f655c92b02c40d259297c0b64fa822f8daf1aa0eaf0086b49b70846  _output/bin/emissary/linux-amd64/busyambassador
-bba921058ebaefce26914b1f8ea67517ec2acab65c3a830e9806da6b45164189  _output/bin/emissary/linux-amd64/capabilities_wrapper
-d99f2fbdece4a2c6a625fb3bf827f0e8390972ef98918be028ea38a0a65515ff  _output/bin/emissary/linux-amd64/example-envoy-metrics-sink
-6002cb496b325695d0ba99fe39ae7f18f972445392cd37a8ec139310ea3d62fb  _output/bin/emissary/linux-amd64/k8sregistryctl
-49fb8e54070a7d552bce64010afe6927807b5b7407378071b9219ba5fac2f022  _output/bin/emissary/linux-amd64/kat-client
-55d394f2c4a367b7b3f4053e2d4f0b4825b72ac0747e8949a52ec4867f65b4ba  _output/bin/emissary/linux-amd64/kat-server
-60aac4a0bef5752869139045ebd56696cf81c43a4cb39a7f7930e1f99f4a0d79  _output/bin/emissary/linux-arm64/busyambassador
-e10197ba603b3d046a2f2a5069100e81648a3672ce6ff66b05bb16298a31c4a4  _output/bin/emissary/linux-arm64/capabilities_wrapper
-8bce8abd79118f48cc6f62d4e8f99ae7aa3c9021c384926cb61978285ff94f2e  _output/bin/emissary/linux-arm64/example-envoy-metrics-sink
-f19b3509eedab16966dce0dfe09aa15a22419a395b36d3bb3eec67be1f098942  _output/bin/emissary/linux-arm64/k8sregistryctl
-d9b5ae77d6a7032f85d8d8cca8e655197caf395cbf56e9e2125bb0c72250c823  _output/bin/emissary/linux-arm64/kat-client
-804d1d911d6a898775305023c0af9b1695f68e0ebf76a0fb92b796767e16cbe7  _output/bin/emissary/linux-arm64/kat-server
+71f0240b2b98d36fb3fe0a4e4eb17e2a93a89842d109164837fddcae841f8b4c  _output/bin/emissary/linux-arm64/busyambassador
+db65ae3e2f146147cac842fe015c467682b64f86cb46340e885ad5a4d714cf1f  _output/bin/emissary/linux-arm64/capabilities_wrapper
+0044258037b1f090b26dad7254be15f2e0877e764c8c29dc95f7d42eedc138a1  _output/bin/emissary/linux-arm64/example-envoy-metrics-sink
+8c077fb138271e9d6a169ba7708c0e923ce0ee2b08bec9cd590910f5db590c73  _output/bin/emissary/linux-arm64/k8sregistryctl
+1b0a303bba65d9b8f5111a62c52c0d9aa5f78528d7c2f43284fc9688c1e90c64  _output/bin/emissary/linux-arm64/kat-client
+81a809f3a3a092b643c6121ce7d8624b11246a3d681e46096d004b40aef88d6a  _output/bin/emissary/linux-arm64/kat-server
diff --git a/projects/emissary-ingress/emissary/GIT_TAG b/projects/emissary-ingress/emissary/GIT_TAG
index a4dae046ef..e543d80335 100644
--- a/projects/emissary-ingress/emissary/GIT_TAG
+++ b/projects/emissary-ingress/emissary/GIT_TAG
@@ -1 +1 @@
-v3.9.1
+v3.10.0-dev
diff --git a/projects/emissary-ingress/emissary/README.md b/projects/emissary-ingress/emissary/README.md
index 46a170ad05..357a55796f 100644
--- a/projects/emissary-ingress/emissary/README.md
+++ b/projects/emissary-ingress/emissary/README.md
@@ -1,5 +1,5 @@
 ## **Emissary-ingress**
-![Version](https://img.shields.io/badge/version-v3.9.1-blue)
+![Version](https://img.shields.io/badge/version-v3.10.0--dev-blue)
 ![Build Status](https://codebuild.us-west-2.amazonaws.com/badges?uuid=eyJlbmNyeXB0ZWREYXRhIjoid2Vla0ZUclhyN0dNN1ZLRnRoV3dBV241UDVVUUNmYUFyWVdDUWg3SUdqcThyblJvZ245cHN0cjFhUGNETDZhUkkySUNDZC9kdVFhemlpUjZGclRibUdnPSIsIml2UGFyYW1ldGVyU3BlYyI6IjRsempqaUZTNlB6TjF0bVQiLCJtYXRlcmlhbFNldFNlcmlhbCI6MX0%3D&branch=main)
 
 Official website: https://www.getambassador.io/docs/