diff --git a/src/Common/README.md b/src/Common/README.md
index a3d5abe..12a8554 100644
--- a/src/Common/README.md
+++ b/src/Common/README.md
@@ -2,4 +2,4 @@
 
 This package contains common code shared between [`Giraffe.Htmx`](https://www.nuget.org/packages/Giraffe.Htmx) and [`Giraffe.ViewEngine.Htmx`](https://www.nuget.org/packages/Giraffe.ViewEngine.Htmx), and will be automatically installed when you install either one.
 
-**htmx version: 2.0.0-beta3**
+**htmx version: 2.0.0-beta4**
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index ebd3cee..750e0f4 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -3,8 +3,8 @@
     <PropertyGroup>
         <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
         <VersionPrefix>2.0.0</VersionPrefix>
-        <VersionSuffix>beta3</VersionSuffix>
-        <PackageReleaseNotes>Update script tags to pull htmx 2.0.0-beta3</PackageReleaseNotes>
+        <VersionSuffix>beta4</VersionSuffix>
+        <PackageReleaseNotes>Update script tags to pull htmx 2.0.0-beta4; add SSE attributes</PackageReleaseNotes>
         <Authors>danieljsummers</Authors>
         <Company>Bit Badger Solutions</Company>
         <PackageProjectUrl>https://git.bitbadger.solutions/bit-badger/Giraffe.Htmx</PackageProjectUrl>
diff --git a/src/Htmx/README.md b/src/Htmx/README.md
index d45c250..1a5d066 100644
--- a/src/Htmx/README.md
+++ b/src/Htmx/README.md
@@ -2,7 +2,7 @@
 
 This package enables server-side support for [htmx](https://htmx.org) within [Giraffe](https://giraffe.wiki) and ASP.NET's `HttpContext`.
 
-**htmx version: 2.0.0-beta3**
+**htmx version: 2.0.0-beta4**
 
 _Note that htmx 2.0 is a BETA release. The [migration guide](https://v2-0v2-0.htmx.org/migration-guide-htmx-1/) does not currently specify any request or response header changes. This means that, as of this release, there are no required code changes in moving to this major version._
 
diff --git a/src/Tests/ViewEngine.fs b/src/Tests/ViewEngine.fs
index 2ca87c6..cfacdc1 100644
--- a/src/Tests/ViewEngine.fs
+++ b/src/Tests/ViewEngine.fs
@@ -826,14 +826,14 @@ let script =
             let html = RenderView.AsString.htmlNode Script.minified
             Expect.equal
                 html
-                """<script src="https://unpkg.com/htmx.org@2.0.0-beta3" integrity="sha384-9wQIC/7bdsqgMwBWWcREHyQOU7vU6P9J2tgQq0056HPV9t35Ypm4vPYA6Ud1MgY9" crossorigin="anonymous"></script>"""
+                """<script src="https://unpkg.com/htmx.org@2.0.0-beta4" integrity="sha384-QprZjU1JKuXu/TnlURCTYppToUjigoOZCrzQtRXAjHttxoV9gkqiizVeAwjeGy1f" crossorigin="anonymous"></script>"""
                 "Minified script tag is incorrect"
         }
         test "unminified succeeds" {
             let html = RenderView.AsString.htmlNode Script.unminified
             Expect.equal
                 html
-                """<script src="https://unpkg.com/htmx.org@2.0.0-beta3/dist/htmx.js" integrity="sha384-lGcccsClz1aGJ47pTvGg8H69LcUEacfYDRwjlmFmRi35GGy8sBegHZaca5O4/Kai" crossorigin="anonymous"></script>"""
+                """<script src="https://unpkg.com/htmx.org@2.0.0-beta4/dist/htmx.js" integrity="sha384-n/53Us+nZur0snldc6yl7W3paw5/sbtpXhImQJk9JZf0KQjzCP6lbBWmAtFsCSb9" crossorigin="anonymous"></script>"""
                 "Unminified script tag is incorrect"
         }
     ]
diff --git a/src/ViewEngine.Htmx/Htmx.fs b/src/ViewEngine.Htmx/Htmx.fs
index 97ede77..e76b6cf 100644
--- a/src/ViewEngine.Htmx/Htmx.fs
+++ b/src/ViewEngine.Htmx/Htmx.fs
@@ -451,14 +451,14 @@ module Script =
   
     /// Script tag to load the minified version from unpkg.com
     let minified =
-        script [ _src         "https://unpkg.com/htmx.org@2.0.0-beta3"
-                 _integrity   "sha384-9wQIC/7bdsqgMwBWWcREHyQOU7vU6P9J2tgQq0056HPV9t35Ypm4vPYA6Ud1MgY9"
+        script [ _src         "https://unpkg.com/htmx.org@2.0.0-beta4"
+                 _integrity   "sha384-QprZjU1JKuXu/TnlURCTYppToUjigoOZCrzQtRXAjHttxoV9gkqiizVeAwjeGy1f"
                  _crossorigin "anonymous" ] []
 
     /// Script tag to load the unminified version from unpkg.com
     let unminified =
-        script [ _src         "https://unpkg.com/htmx.org@2.0.0-beta3/dist/htmx.js"
-                 _integrity   "sha384-lGcccsClz1aGJ47pTvGg8H69LcUEacfYDRwjlmFmRi35GGy8sBegHZaca5O4/Kai"
+        script [ _src         "https://unpkg.com/htmx.org@2.0.0-beta4/dist/htmx.js"
+                 _integrity   "sha384-n/53Us+nZur0snldc6yl7W3paw5/sbtpXhImQJk9JZf0KQjzCP6lbBWmAtFsCSb9"
                  _crossorigin "anonymous" ] []
 
 
diff --git a/src/ViewEngine.Htmx/README.md b/src/ViewEngine.Htmx/README.md
index bdf6de9..b66467e 100644
--- a/src/ViewEngine.Htmx/README.md
+++ b/src/ViewEngine.Htmx/README.md
@@ -2,7 +2,7 @@
 
 This package enables [htmx](https://htmx.org) support within the [Giraffe](https://giraffe.wiki) view engine.
 
-**htmx version: 2.0.0-beta3**
+**htmx version: 2.0.0-beta4**
 
 _Note that this is a BETA release of htmx 2.0; see [the migration guide](https://v2-0v2-0.htmx.org/migration-guide-htmx-1/) for changes_