diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 8d0a116..4208b5c 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.5.4"
+  ".": "0.6.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index abb9f58..ace74e6 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 140
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/hexlet%2Famocrm-800f4ed7083bc38fd4ddc3fdb0b975c2ad3f95b7e0375ff64d31690a3a0d5d34.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/hexlet/amocrm-800f4ed7083bc38fd4ddc3fdb0b975c2ad3f95b7e0375ff64d31690a3a0d5d34.yml
 openapi_spec_hash: ee149ec82a8a54b8ba43f99fa8a53004
 config_hash: e17200f7c5d0bdc4e3739a97df48b802
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d51e571..e3110c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 0.6.0 (2026-04-30)
+
+Full Changelog: [v0.5.4...v0.6.0](https://github.com/Hexlet/amocrm-ruby/compare/v0.5.4...v0.6.0)
+
+### Features
+
+* support setting headers via env ([9d3e5cc](https://github.com/Hexlet/amocrm-ruby/commit/9d3e5ccbfb69032008b65d94ea95429ad28e67ae))
+
+
+### Chores
+
+* **internal:** more robust bootstrap script ([8159023](https://github.com/Hexlet/amocrm-ruby/commit/8159023a5aae2e0345da38e58737a8e8c3ab5c9e))
+
 ## 0.5.4 (2026-04-09)
 
 Full Changelog: [v0.5.3...v0.5.4](https://github.com/Hexlet/amocrm-ruby/compare/v0.5.3...v0.5.4)
diff --git a/Gemfile.lock b/Gemfile.lock
index 1e7bee6..f375b8c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GIT
 PATH
   remote: .
   specs:
-    amocrm (0.5.4)
+    amocrm (0.6.0)
       cgi
       connection_pool
 
diff --git a/README.md b/README.md
index e338635..89ec5ca 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ To use this gem, install via Bundler by adding the following to your application
 <!-- x-release-please-start-version -->
 
 ```ruby
-gem "amocrm", "~> 0.5.4"
+gem "amocrm", "~> 0.6.0"
 ```
 
 <!-- x-release-please-end -->
diff --git a/lib/amocrm/client.rb b/lib/amocrm/client.rb
index 582cf80..4e9e991 100644
--- a/lib/amocrm/client.rb
+++ b/lib/amocrm/client.rb
@@ -172,6 +172,19 @@ def initialize(
         raise ArgumentError.new("subdomain is required, and can be set via environ: \"AMOCRM_SUBDOMAIN\"")
       end
 
+      headers = {}
+      custom_headers_env = ENV["AMOCRM_CUSTOM_HEADERS"]
+      unless custom_headers_env.nil?
+        parsed = {}
+        custom_headers_env.split("\n").each do |line|
+          colon = line.index(":")
+          unless colon.nil?
+            parsed[line[0...colon].strip] = line[(colon + 1)..].strip
+          end
+        end
+        headers = parsed.merge(headers)
+      end
+
       @token = token.to_s
       @subdomain = subdomain.to_s
 
@@ -180,7 +193,8 @@ def initialize(
         timeout: timeout,
         max_retries: max_retries,
         initial_retry_delay: initial_retry_delay,
-        max_retry_delay: max_retry_delay
+        max_retry_delay: max_retry_delay,
+        headers: headers
       )
 
       @account = Amocrm::Resources::Account.new(client: self)
diff --git a/lib/amocrm/version.rb b/lib/amocrm/version.rb
index b7833c7..1e2c368 100644
--- a/lib/amocrm/version.rb
+++ b/lib/amocrm/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Amocrm
-  VERSION = "0.5.4"
+  VERSION = "0.6.0"
 end
diff --git a/scripts/bootstrap b/scripts/bootstrap
index 3487864..a5e1b80 100755
--- a/scripts/bootstrap
+++ b/scripts/bootstrap
@@ -4,7 +4,7 @@ set -e
 
 cd -- "$(dirname -- "$0")/.."
 
-if [ -f "Brewfile" ] && [ "$(uname -s)" = "Darwin" ] && [ "$SKIP_BREW" != "1" ] && [ -t 0 ]; then
+if [ -f "Brewfile" ] && [ "$(uname -s)" = "Darwin" ] && [ "${SKIP_BREW:-}" != "1" ] && [ -t 0 ]; then
   brew bundle check >/dev/null 2>&1 || {
     echo -n "==> Install Homebrew dependencies? (y/N): "
     read -r response