diff --git a/pkgs/tools/typesetting/asciidoc/default.nix b/pkgs/tools/typesetting/asciidoc/default.nix
index 61af8102f51e..849da7e606c0 100644
--- a/pkgs/tools/typesetting/asciidoc/default.nix
+++ b/pkgs/tools/typesetting/asciidoc/default.nix
@@ -147,6 +147,8 @@ stdenv.mkDerivation rec {
   pname = "asciidoc";
   version = "9.0.4";
 
+  # Note: a substitution to improve reproducibility should be updated once 10.0.0 is
+  # released. See the comment in `patchPhase` for more information.
   src = fetchFromGitHub {
     owner = "asciidoc";
     repo = "asciidoc-py3";
@@ -261,7 +263,15 @@ stdenv.mkDerivation rec {
   '') + ''
     patchShebangs .
 
-    sed -i -e "s,/etc/vim,,g" Makefile.in
+    # Note: this substitution will not work in the planned 10.0.0 release:
+    #
+    # https://github.com/asciidoc/asciidoc-py3/commit/dfffda23381014481cd13e8e9d8f131e1f93f08a
+    #
+    # Update this substitution to:
+    #
+    # --replace "python3 -m asciidoc.a2x" "python3 -m asciidoc.a2x -a revdate=01/01/1980"
+    substituteInPlace Makefile.in \
+      --replace "python3 a2x.py" "python3 a2x.py -a revdate=01/01/1980"
   '';
 
   preInstall = "mkdir -p $out/etc/vim";