diff --git a/pkgs/development/libraries/alembic/default.nix b/pkgs/development/libraries/alembic/default.nix
index 4efa425ee28b..afd0ad458bf7 100644
--- a/pkgs/development/libraries/alembic/default.nix
+++ b/pkgs/development/libraries/alembic/default.nix
@@ -3,13 +3,13 @@
 stdenv.mkDerivation rec
 {
   pname = "alembic";
-  version = "1.8.5";
+  version = "1.8.6";
 
   src = fetchFromGitHub {
     owner = "alembic";
     repo = "alembic";
     rev = version;
-    sha256 = "sha256-wJVx0rwK0Qk07jlP0DyEAZUrAD+47qcVXSnTh5ngZG8=";
+    sha256 = "sha256-MND1GtnIGUtRrtyUX1eR9UoGGtuTPtVEIIET3QQ6blA=";
   };
 
   # note: out is unused (but required for outputDoc anyway)