diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -119,9 +119,9 @@
 if(ENABLE_GNUTLS)
   find_package(GnuTLS 3.7.2)
 endif()
 if(ENABLE_OPENSSL)
-  find_package(OpenSSL 1.1.1)
+  find_package(OpenSSL REQUIRED)
 endif()
 if(ENABLE_WOLFSSL)
   find_package(wolfssl 5.5.0)
 endif()