diff --git a/beacon-chain/rpc/apimiddleware/BUILD.bazel b/beacon-chain/rpc/apimiddleware/BUILD.bazel
index d3fd05d2b..3a62eec0e 100644
--- a/beacon-chain/rpc/apimiddleware/BUILD.bazel
+++ b/beacon-chain/rpc/apimiddleware/BUILD.bazel
@@ -23,7 +23,7 @@ go_library(
         "//runtime/version:go_default_library",
         "//time/slots:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
-        "@com_github_r3labs_sse//:go_default_library",
+        "@com_github_r3labs_sse_v2//:go_default_library",
     ],
 )
 
@@ -46,6 +46,6 @@ go_test(
         "//testing/require:go_default_library",
         "//time/slots:go_default_library",
         "@com_github_gogo_protobuf//types:go_default_library",
-        "@com_github_r3labs_sse//:go_default_library",
+        "@com_github_r3labs_sse_v2//:go_default_library",
     ],
 )
diff --git a/beacon-chain/rpc/apimiddleware/custom_handlers.go b/beacon-chain/rpc/apimiddleware/custom_handlers.go
index 57293a50c..753512ec5 100644
--- a/beacon-chain/rpc/apimiddleware/custom_handlers.go
+++ b/beacon-chain/rpc/apimiddleware/custom_handlers.go
@@ -17,7 +17,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v4/api/grpc"
 	"github.com/prysmaticlabs/prysm/v4/beacon-chain/rpc/eth/events"
 	"github.com/prysmaticlabs/prysm/v4/runtime/version"
-	"github.com/r3labs/sse"
+	"github.com/r3labs/sse/v2"
 )
 
 // match a number with optional decimals
diff --git a/beacon-chain/rpc/apimiddleware/custom_handlers_test.go b/beacon-chain/rpc/apimiddleware/custom_handlers_test.go
index 2d830f71c..1703dac35 100644
--- a/beacon-chain/rpc/apimiddleware/custom_handlers_test.go
+++ b/beacon-chain/rpc/apimiddleware/custom_handlers_test.go
@@ -17,7 +17,7 @@ import (
 	"github.com/prysmaticlabs/prysm/v4/beacon-chain/rpc/eth/events"
 	"github.com/prysmaticlabs/prysm/v4/testing/assert"
 	"github.com/prysmaticlabs/prysm/v4/testing/require"
-	"github.com/r3labs/sse"
+	"github.com/r3labs/sse/v2"
 )
 
 type testSSZResponseJson struct {
diff --git a/deps.bzl b/deps.bzl
index 9d425ffd8..a8b65aa6e 100644
--- a/deps.bzl
+++ b/deps.bzl
@@ -3394,12 +3394,11 @@ def prysm_deps():
         sum = "h1:GA6Bl6oZY+g/flt00Pnu0XtivSD8vukOu3lYhJjnGEk=",
         version = "v0.5.2",
     )
-
     go_repository(
-        name = "com_github_r3labs_sse",
-        importpath = "github.com/r3labs/sse",
-        sum = "h1:zAsgcP8MhzAbhMnB1QQ2O7ZhWYVGYSR2iVcjzQuPV+o=",
-        version = "v0.0.0-20210224172625-26fe804710bc",
+        name = "com_github_r3labs_sse_v2",
+        importpath = "github.com/r3labs/sse/v2",
+        sum = "h1:hFEkLLFY4LDifoHdiCN/LlGBAdVJYsANaLqNYa1l/v0=",
+        version = "v2.10.0",
     )
 
     go_repository(
diff --git a/go.mod b/go.mod
index dfbef6542..94d8fcf11 100644
--- a/go.mod
+++ b/go.mod
@@ -62,7 +62,7 @@ require (
 	github.com/prysmaticlabs/go-bitfield v0.0.0-20210809151128-385d8c5e3fb7
 	github.com/prysmaticlabs/prombbolt v0.0.0-20210126082820-9b7adba6db7c
 	github.com/prysmaticlabs/protoc-gen-go-cast v0.0.0-20230228205207-28762a7b9294
-	github.com/r3labs/sse v0.0.0-20210224172625-26fe804710bc
+	github.com/r3labs/sse/v2 v2.10.0
 	github.com/rs/cors v1.7.0
 	github.com/schollz/progressbar/v3 v3.3.4
 	github.com/sirupsen/logrus v1.9.0
diff --git a/go.sum b/go.sum
index 52a9d8668..e83e6f643 100644
--- a/go.sum
+++ b/go.sum
@@ -1085,8 +1085,8 @@ github.com/quic-go/quic-go v0.33.0 h1:ItNoTDN/Fm/zBlq769lLJc8ECe9gYaW40veHCCco7y
 github.com/quic-go/quic-go v0.33.0/go.mod h1:YMuhaAV9/jIu0XclDXwZPAsP/2Kgr5yMYhe9oxhhOFA=
 github.com/quic-go/webtransport-go v0.5.2 h1:GA6Bl6oZY+g/flt00Pnu0XtivSD8vukOu3lYhJjnGEk=
 github.com/quic-go/webtransport-go v0.5.2/go.mod h1:OhmmgJIzTTqXK5xvtuX0oBpLV2GkLWNDA+UeTGJXErU=
-github.com/r3labs/sse v0.0.0-20210224172625-26fe804710bc h1:zAsgcP8MhzAbhMnB1QQ2O7ZhWYVGYSR2iVcjzQuPV+o=
-github.com/r3labs/sse v0.0.0-20210224172625-26fe804710bc/go.mod h1:S8xSOnV3CgpNrWd0GQ/OoQfMtlg2uPRSuTzcSGrzwK8=
+github.com/r3labs/sse/v2 v2.10.0 h1:hFEkLLFY4LDifoHdiCN/LlGBAdVJYsANaLqNYa1l/v0=
+github.com/r3labs/sse/v2 v2.10.0/go.mod h1:Igau6Whc+F17QUgML1fYe1VPZzTV6EMCnYktEmkNJ7I=
 github.com/raulk/go-watchdog v1.3.0 h1:oUmdlHxdkXRJlwfG0O9omj8ukerm8MEQavSiDTEtBsk=
 github.com/raulk/go-watchdog v1.3.0/go.mod h1:fIvOnLbF0b0ZwkB9YU4mOW9Did//4vPZtDqv66NfsMU=
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=