diff --git a/CMakeLists.txt b/CMakeLists.txt
index 615d06678..aa2879551 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,7 +40,7 @@ set(GIOMM_MINIMUM 2.26.0)
 set(GLIBMM_MINIMUM 2.60.0)
 set(GTKMM3_MINIMUM 3.24.0)
 set(GTKMM4_MINIMUM 4.11.1)
-set(OPENSSL_MINIMUM 0.9.7)
+set(OPENSSL_MINIMUM 1.1.0)
 set(MBEDTLS_MINIMUM 1.3)
 set(NPM_MINIMUM 8.1.307) # Node.js 14
 set(PSL_MINIMUM 0.21.1)