diff --git a/pkgs/development/tools/build-managers/apache-ant/1.9.nix b/pkgs/development/tools/build-managers/apache-ant/1.9.nix
deleted file mode 100644
index d4a69067705c..000000000000
--- a/pkgs/development/tools/build-managers/apache-ant/1.9.nix
+++ /dev/null
@@ -1,111 +0,0 @@
-{ fetchurl, lib, stdenv, coreutils, makeWrapper }:
-
-stdenv.mkDerivation rec {
-  pname = "ant";
-  version = "1.9.16";
-
-  nativeBuildInputs = [ makeWrapper ];
-
-  src = fetchurl {
-    url = "mirror://apache/ant/binaries/apache-ant-${version}-bin.tar.bz2";
-    sha256 = "0rif9kj6njajy951w3aapk27y1mbaxb08whs126v533h96rb1kjp";
-  };
-
-  contrib = fetchurl {
-    url = "mirror://sourceforge/ant-contrib/ant-contrib-1.0b3-bin.tar.bz2";
-    sha256 = "96effcca2581c1ab42a4828c770b48d54852edf9e71cefc9ed2ffd6590571ad1";
-  };
-
-  installPhase =
-    ''
-      mkdir -p $out/bin $out/lib/ant
-      mv * $out/lib/ant/
-
-      # Get rid of the manual (35 MiB).  Maybe we should put this in a
-      # separate output.  Keep the antRun script since it's vanilla sh
-      # and needed for the <exec/> task (but since we set ANT_HOME to
-      # a weird value, we have to move antRun to a weird location).
-      # Get rid of the other Ant scripts since we provide our own.
-      mv $out/lib/ant/bin/antRun $out/bin/
-      rm -rf $out/lib/ant/{manual,bin,WHATSNEW}
-      mkdir $out/lib/ant/bin
-      mv $out/bin/antRun $out/lib/ant/bin/
-
-      # Install ant-contrib.
-      unpackFile $contrib
-      cp -p ant-contrib/ant-contrib-*.jar $out/lib/ant/lib/
-
-      cat >> $out/bin/ant <<EOF
-      #! ${stdenv.shell} -e
-
-      ANT_HOME=$out/lib/ant
-
-      # Find the JDK by looking for javac.  As a fall-back, find the
-      # JRE by looking for java.  The latter allows just the JRE to be
-      # used with (say) ECJ as the compiler.  Finally, allow the GNU
-      # JVM.
-      if [ -z "\''${JAVA_HOME-}" ]; then
-          for i in javac java gij; do
-              if p="\$(type -p \$i)"; then
-                  export JAVA_HOME="\$(${coreutils}/bin/dirname \$(${coreutils}/bin/dirname \$(${coreutils}/bin/readlink -f \$p)))"
-                  break
-              fi
-          done
-          if [ -z "\''${JAVA_HOME-}" ]; then
-              echo "\$0: cannot find the JDK or JRE" >&2
-              exit 1
-          fi
-      fi
-
-      if [ -z \$NIX_JVM ]; then
-          if [ -e \$JAVA_HOME/bin/java ]; then
-              NIX_JVM=\$JAVA_HOME/bin/java
-          elif [ -e \$JAVA_HOME/bin/gij ]; then
-              NIX_JVM=\$JAVA_HOME/bin/gij
-          else
-              NIX_JVM=java
-          fi
-      fi
-
-      LOCALCLASSPATH="\$ANT_HOME/lib/ant-launcher.jar\''${LOCALCLASSPATH:+:}\$LOCALCLASSPATH"
-
-      exec \$NIX_JVM \$NIX_ANT_OPTS \$ANT_OPTS -classpath "\$LOCALCLASSPATH" \
-          -Dant.home=\$ANT_HOME -Dant.library.dir="\$ANT_LIB" \
-          org.apache.tools.ant.launch.Launcher \$NIX_ANT_ARGS \$ANT_ARGS \
-          -cp "\$CLASSPATH" "\$@"
-      EOF
-
-      chmod +x $out/bin/ant
-    ''; # */
-
-  meta = {
-    homepage = "https://ant.apache.org/";
-    description = "A Java-based build tool";
-
-    longDescription = ''
-      Apache Ant is a Java-based build tool.  In theory, it is kind of like
-      Make, but without Make's wrinkles.
-
-      Why another build tool when there is already make, gnumake, nmake, jam,
-      and others? Because all those tools have limitations that Ant's
-      original author couldn't live with when developing software across
-      multiple platforms.  Make-like tools are inherently shell-based -- they
-      evaluate a set of dependencies, then execute commands not unlike what
-      you would issue in a shell.  This means that you can easily extend
-      these tools by using or writing any program for the OS that you are
-      working on.  However, this also means that you limit yourself to the
-      OS, or at least the OS type such as Unix, that you are working on.
-
-      Ant is different.  Instead of a model where it is extended with
-      shell-based commands, Ant is extended using Java classes.  Instead of
-      writing shell commands, the configuration files are XML-based, calling
-      out a target tree where various tasks get executed.  Each task is run
-      by an object that implements a particular Task interface.
-    '';
-
-    sourceProvenance = with lib.sourceTypes; [ binaryBytecode ];
-    license = lib.licenses.asl20;
-    maintainers = [ lib.maintainers.eelco ];
-    platforms = lib.platforms.all;
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index cfed3bbac467..bb1e8b1880b1 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -69,6 +69,7 @@ mapAliases ({
   alsaUtils = alsa-utils; # Added 2021-06-10
   angelfish = libsForQt5.kdeGear.angelfish; # Added 2021-10-06
   ansible_2_12 = throw "Ansible 2.12 goes end of life in 2023/05 and can't be supported throughout the 23.05 release cycle"; # Added 2023-05-16
+  apacheAnt_1_9 = throw "Ant 1.9 has been removed since it's not used in nixpkgs anymore"; # Added 2023-11-12
   antimicroX = antimicrox; # Added 2021-10-31
   arcanPackages = throw "arcanPackages was removed and its sub-attributes were promoted to top-level"; # Added 2023-11-26
   ardour_6 = throw "ardour_6 has been removed in favor of newer versions"; # Added 2023-10-13
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8797b956364b..67aaee744cdf 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18410,7 +18410,6 @@ with pkgs;
   antlr = antlr4;
 
   apacheAnt = callPackage ../development/tools/build-managers/apache-ant { };
-  apacheAnt_1_9 = callPackage ../development/tools/build-managers/apache-ant/1.9.nix { };
   ant = apacheAnt;
 
   apacheKafka = apacheKafka_3_5;