diff --git a/pkgs/development/libraries/openssl/default.nix b/pkgs/development/libraries/openssl/default.nix
index 8182a01cd52d..9e2569ae9fe9 100644
--- a/pkgs/development/libraries/openssl/default.nix
+++ b/pkgs/development/libraries/openssl/default.nix
@@ -178,8 +178,8 @@ in {
 
 
   openssl_1_1 = common rec {
-    version = "1.1.1n";
-    sha256 = "sha256-QNzrUaT2pSdb3g5r8g70uRv8Mu1XwFUuLo4VRjNysXo=";
+    version = "1.1.1o";
+    sha256 = "sha256-k4SisFcN2ANYhBRkZ3EV33he25QccSEfdQdtcv5rQ48=";
     patches = [
       ./1.1/nix-ssl-cert-file.patch