diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b5c2d8..7c5cad7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 4.3.6 — 2023-11-18
+
+### Fixed
+
+* Updated the version of the REST Api for conversion clients (closes #135).
+
 ## 4.3.5 — 2023-09-19
 
 ### Changed
diff --git a/lib/uploadcare/client/conversion/base_conversion_client.rb b/lib/uploadcare/client/conversion/base_conversion_client.rb
index 70a39f1..868a0cf 100644
--- a/lib/uploadcare/client/conversion/base_conversion_client.rb
+++ b/lib/uploadcare/client/conversion/base_conversion_client.rb
@@ -10,7 +10,7 @@ module Conversion
       #
       # @see https://uploadcare.com/api-refs/rest-api/v0.7.0/#tag/Conversion
       class BaseConversionClient < RestClient
-        API_VERSION_HEADER_VALUE = 'application/vnd.uploadcare-v0.5+json'
+        API_VERSION_HEADER_VALUE = 'application/vnd.uploadcare-v0.7+json'
 
         def headers
           {
diff --git a/lib/uploadcare/ruby/version.rb b/lib/uploadcare/ruby/version.rb
index 393d11e..c3c4de8 100644
--- a/lib/uploadcare/ruby/version.rb
+++ b/lib/uploadcare/ruby/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Uploadcare
-  VERSION = '4.3.5'
+  VERSION = '4.3.6'
 end