diff --git a/CHANGELOG.md b/CHANGELOG.md
index 546fecc8..86662bbe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@
 - __4.1.2__ Compatibility with 64-bit Mac
 - __4.1.3__ Mac bugfix for % encoding
 - __4.1.4__ Fix compilation issues for 64-bit Mac
+- __4.1.5__ Update VBA-JSON to v2.3.0 (fixes JSON slowdown on Windows)
 
 # 4.0.0
 
diff --git a/VBA-Web - Blank.xlsm b/VBA-Web - Blank.xlsm
index 27ccc0f9..c7fecf36 100644
Binary files a/VBA-Web - Blank.xlsm and b/VBA-Web - Blank.xlsm differ
diff --git a/VBA-Web - Installer.xlsm b/VBA-Web - Installer.xlsm
index 2d45800a..dcc43645 100644
Binary files a/VBA-Web - Installer.xlsm and b/VBA-Web - Installer.xlsm differ
diff --git a/examples/VBA-Web - Example.xlsm b/examples/VBA-Web - Example.xlsm
index 5b63600a..56782693 100644
Binary files a/examples/VBA-Web - Example.xlsm and b/examples/VBA-Web - Example.xlsm differ
diff --git a/specs/VBA-Web - Specs - Async.xlsm b/specs/VBA-Web - Specs - Async.xlsm
index 28b87c88..f0d6fd76 100644
Binary files a/specs/VBA-Web - Specs - Async.xlsm and b/specs/VBA-Web - Specs - Async.xlsm differ
diff --git a/specs/VBA-Web - Specs.xlsm b/specs/VBA-Web - Specs.xlsm
index dfe77e13..692ccd57 100644
Binary files a/specs/VBA-Web - Specs.xlsm and b/specs/VBA-Web - Specs.xlsm differ
diff --git a/src/IWebAuthenticator.cls b/src/IWebAuthenticator.cls
index a81f3798..952beff9 100644
--- a/src/IWebAuthenticator.cls
+++ b/src/IWebAuthenticator.cls
@@ -8,7 +8,7 @@ Attribute VB_Creatable = False
 Attribute VB_PredeclaredId = False
 Attribute VB_Exposed = True
 ''
-' IWebAuthenticator v4.1.4
+' IWebAuthenticator v4.1.5
 ' (c) Tim Hall - https://github.com/VBA-tools/VBA-Web
 '
 ' Interface for creating authenticators for rest client
diff --git a/src/WebAsyncWrapper.cls b/src/WebAsyncWrapper.cls
index 4726094c..1a89a577 100644
--- a/src/WebAsyncWrapper.cls
+++ b/src/WebAsyncWrapper.cls
@@ -8,7 +8,7 @@ Attribute VB_Creatable = False
 Attribute VB_PredeclaredId = False
 Attribute VB_Exposed = True
 ''
-' WebAsyncWrapper v4.1.4
+' WebAsyncWrapper v4.1.5
 ' (c) Tim Hall - https://github.com/VBA-tools/VBA-Web
 '
 ' Wrapper WebClient and WebRequest that enables callback-style async requests
diff --git a/src/WebClient.cls b/src/WebClient.cls
index 5e4e3e05..fc1acfa7 100644
--- a/src/WebClient.cls
+++ b/src/WebClient.cls
@@ -8,7 +8,7 @@ Attribute VB_Creatable = False
 Attribute VB_PredeclaredId = False
 Attribute VB_Exposed = True
 ''
-' WebClient v4.1.4
+' WebClient v4.1.5
 ' (c) Tim Hall - https://github.com/VBA-tools/VBA-Web
 '
 ' `WebClient` executes requests and handles response and is responsible for functionality shared between requests,
diff --git a/src/WebHelpers.bas b/src/WebHelpers.bas
index 1d4119ad..b1940a20 100644
--- a/src/WebHelpers.bas
+++ b/src/WebHelpers.bas
@@ -1,6 +1,6 @@
 Attribute VB_Name = "WebHelpers"
 ''
-' WebHelpers v4.1.4
+' WebHelpers v4.1.5
 ' (c) Tim Hall - https://github.com/VBA-tools/VBA-Web
 '
 ' Contains general-purpose helpers that are used throughout VBA-Web. Includes:
@@ -268,7 +268,7 @@ Private Declare Function web_feof Lib "libc.dylib" Alias "feof" (ByVal web_File
 #End If
 #End If
 
-Public Const WebUserAgent As String = "VBA-Web v4.1.4 (https://github.com/VBA-tools/VBA-Web)"
+Public Const WebUserAgent As String = "VBA-Web v4.1.5 (https://github.com/VBA-tools/VBA-Web)"
 
 ' @internal
 Public Type ShellResult
diff --git a/src/WebRequest.cls b/src/WebRequest.cls
index 04af733d..1a078a1b 100644
--- a/src/WebRequest.cls
+++ b/src/WebRequest.cls
@@ -8,7 +8,7 @@ Attribute VB_Creatable = False
 Attribute VB_PredeclaredId = False
 Attribute VB_Exposed = True
 ''
-' WebRequest v4.1.4
+' WebRequest v4.1.5
 ' (c) Tim Hall - https://github.com/VBA-tools/VBA-Web
 '
 ' `WebRequest` is used to create detailed requests
diff --git a/src/WebResponse.cls b/src/WebResponse.cls
index 251daeb5..e4270cab 100644
--- a/src/WebResponse.cls
+++ b/src/WebResponse.cls
@@ -8,7 +8,7 @@ Attribute VB_Creatable = False
 Attribute VB_PredeclaredId = False
 Attribute VB_Exposed = True
 ''
-' WebResponse v4.1.4
+' WebResponse v4.1.5
 ' (c) Tim Hall - https://github.com/VBA-tools/VBA-Web
 '
 ' Wrapper for http/cURL responses that includes parsed Data based on WebRequest.ResponseFormat.