diff --git a/proto/lib/livebook_proto/deployment_group.pb.ex b/proto/lib/livebook_proto/deployment_group.pb.ex
index 85f0cd130..fdce76998 100644
--- a/proto/lib/livebook_proto/deployment_group.pb.ex
+++ b/proto/lib/livebook_proto/deployment_group.pb.ex
@@ -10,4 +10,9 @@ defmodule LivebookProto.DeploymentGroup do
   field :zta_key, 7, type: :string, json_name: "ztaKey", deprecated: true
   field :agent_keys, 8, repeated: true, type: LivebookProto.AgentKey, json_name: "agentKeys"
   field :url, 9, type: :string
+
+  field :environment_variables, 10,
+    repeated: true,
+    type: LivebookProto.EnvironmentVariable,
+    json_name: "environmentVariables"
 end
diff --git a/proto/lib/livebook_proto/deployment_group_updated.pb.ex b/proto/lib/livebook_proto/deployment_group_updated.pb.ex
index f22463770..3289f9076 100644
--- a/proto/lib/livebook_proto/deployment_group_updated.pb.ex
+++ b/proto/lib/livebook_proto/deployment_group_updated.pb.ex
@@ -9,4 +9,9 @@ defmodule LivebookProto.DeploymentGroupUpdated do
   field :zta_key, 6, type: :string, json_name: "ztaKey", deprecated: true
   field :agent_keys, 7, repeated: true, type: LivebookProto.AgentKey, json_name: "agentKeys"
   field :url, 8, type: :string
+
+  field :environment_variables, 9,
+    repeated: true,
+    type: LivebookProto.EnvironmentVariable,
+    json_name: "environmentVariables"
 end
diff --git a/proto/lib/livebook_proto/environment_variable.pb.ex b/proto/lib/livebook_proto/environment_variable.pb.ex
new file mode 100644
index 000000000..8efafb9ab
--- /dev/null
+++ b/proto/lib/livebook_proto/environment_variable.pb.ex
@@ -0,0 +1,6 @@
+defmodule LivebookProto.EnvironmentVariable do
+  use Protobuf, syntax: :proto3, protoc_gen_elixir_version: "0.13.0"
+
+  field :name, 1, type: :string
+  field :value, 2, type: :string
+end
diff --git a/proto/messages.proto b/proto/messages.proto
index c96673838..081a73973 100644
--- a/proto/messages.proto
+++ b/proto/messages.proto
@@ -64,6 +64,7 @@ message DeploymentGroup {
   string zta_key = 7 [deprecated = true];
   repeated AgentKey agent_keys = 8;
   string url = 9;
+  repeated EnvironmentVariable environment_variables = 10;
 }
 
 message DeploymentGroupCreated {
@@ -86,6 +87,7 @@ message DeploymentGroupUpdated {
   string zta_key = 6 [deprecated = true];
   repeated AgentKey agent_keys = 7;
   string url = 8;
+  repeated EnvironmentVariable environment_variables = 9;
 }
 
 message DeploymentGroupDeleted {
@@ -182,6 +184,11 @@ message AppDeploymentStatusReport {
   repeated AppDeploymentStatus app_deployment_statuses = 1;
 }
 
+message EnvironmentVariable {
+  string name = 1;
+  string value = 2;
+}
+
 message Event {
   oneof type {
     SecretCreated secret_created = 1;