diff --git a/mobile/fastlane/Fastfile b/mobile/fastlane/Fastfile
index 74a86d2..0bd6c98 100644
--- a/mobile/fastlane/Fastfile
+++ b/mobile/fastlane/Fastfile
@@ -1,3 +1,23 @@
+require 'openssl'
+
+# Workaround: fastlane 2.234.0 uses OpenSSL::PKey::EC.new which fails on
+# PKCS#8 keys with OpenSSL 3.x ("invalid curve name"). Fallback to PKey.read.
+module OpenSSL
+  module PKey
+    class EC
+      class << self
+        alias_method :_orig_new, :new
+        def new(*args)
+          _orig_new(*args)
+        rescue OpenSSL::PKey::ECError
+          raise unless args.length == 1 && args[0].is_a?(String)
+          OpenSSL::PKey.read(args[0])
+        end
+      end
+    end
+  end
+end
+
 default_platform(:ios)
 
 platform :ios do