diff --git a/ansible/files/admin_api_scripts/pg_upgrade_scripts/initiate.sh b/ansible/files/admin_api_scripts/pg_upgrade_scripts/initiate.sh
index 235b4f4c1..ed9a7ed9b 100755
--- a/ansible/files/admin_api_scripts/pg_upgrade_scripts/initiate.sh
+++ b/ansible/files/admin_api_scripts/pg_upgrade_scripts/initiate.sh
@@ -47,7 +47,6 @@ SERVER_ENCODING=$(run_sql -A -t -c "SHOW server_encoding;")
 
 POSTGRES_CONFIG_PATH="/etc/postgresql/postgresql.conf"
 PGBINOLD="/usr/lib/postgresql/bin"
-PGLIBOLD="/usr/lib/postgresql/lib"
 
 PG_UPGRADE_BIN_DIR="/tmp/pg_upgrade_bin/$PGVERSION"
 NIX_INSTALLER_PATH="/tmp/persistent/nix-installer"
@@ -181,58 +180,6 @@ EOF
     done
 }
 
-function patch_wrappers {
-    local IS_NIX_UPGRADE=$1
-
-    WRAPPERS_ENABLED=$(run_sql -A -t -c "SELECT EXISTS(SELECT 1 FROM pg_extension WHERE extname = 'wrappers');")
-    if [ "$WRAPPERS_ENABLED" = "f" ]; then
-        echo "Wrappers extension not enabled. Skipping."
-        return
-    fi
-
-    # This is a workaround for older versions of wrappers which don't have the expected
-    #  naming scheme, containing the version in their library's file name
-    #  e.g. wrappers-0.1.16.so, rather than wrappers.so
-    # pg_upgrade errors out when it doesn't find an equivalent file in the new PG version's
-    #  library directory, so we're making sure the new version has the expected (old version's)
-    #  file name.
-    # After the upgrade completes, the new version's library file is used.
-    # i.e. 
-    #  - old version: wrappers-0.1.16.so
-    #  - new version: wrappers-0.1.18.so
-    #  - workaround to make pg_upgrade happy: copy wrappers-0.1.18.so to wrappers-0.1.16.so
-    if [ "$IS_NIX_UPGRADE" = "true" ]; then
-        if [ -d "$PGLIBOLD" ]; then
-            OLD_WRAPPER_LIB_PATH=$(find "$PGLIBOLD" -name "wrappers*so" -print -quit)
-            OLD_LIB_FILE_NAME=$(basename "$OLD_WRAPPER_LIB_PATH")
-
-            find /nix/store/ -name "wrappers*so" -print0 | while read -r -d $'\0' WRAPPERS_LIB_PATH; do
-                if [ -f "$WRAPPERS_LIB_PATH" ]; then
-                    WRAPPERS_LIB_PATH_DIR=$(dirname "$WRAPPERS_LIB_PATH")
-                    if [ "$WRAPPERS_LIB_PATH" != "$WRAPPERS_LIB_PATH_DIR/${OLD_LIB_FILE_NAME}" ]; then
-                        echo "Copying $WRAPPERS_LIB_PATH to $WRAPPERS_LIB_PATH_DIR/${OLD_LIB_FILE_NAME}"
-                        cp "$WRAPPERS_LIB_PATH" "$WRAPPERS_LIB_PATH_DIR/${OLD_LIB_FILE_NAME}" || true
-                    fi
-                fi
-            done
-        fi
-    else
-        if [ -d "$PGLIBOLD" ]; then
-            WRAPPERS_LIB_PATH=$(find "$PGLIBNEW" -name "wrappers*so" -print -quit)
-            if [ -f "$WRAPPERS_LIB_PATH" ]; then
-                OLD_WRAPPER_LIB_PATH=$(find "$PGLIBOLD" -name "wrappers*so" -print -quit)
-                if [ -f "$OLD_WRAPPER_LIB_PATH" ]; then
-                    LIB_FILE_NAME=$(basename "$OLD_WRAPPER_LIB_PATH")
-                    if [ "$WRAPPERS_LIB_PATH" != "$PGLIBNEW/${LIB_FILE_NAME}" ]; then
-                        echo "Copying $WRAPPERS_LIB_PATH to $PGLIBNEW/${LIB_FILE_NAME}"
-                        cp "$WRAPPERS_LIB_PATH" "$PGLIBNEW/${LIB_FILE_NAME}" || true
-                    fi
-                fi
-            fi
-        fi
-    fi
-}
-
 function initiate_upgrade {
     mkdir -p "$MOUNT_POINT"
     SHARED_PRELOAD_LIBRARIES=$(cat "$POSTGRES_CONFIG_PATH" | grep shared_preload_libraries | sed "s/shared_preload_libraries =\s\{0,1\}'\(.*\)'.*/\1/")
@@ -409,8 +356,6 @@ function initiate_upgrade {
         export LD_LIBRARY_PATH="${PGLIBNEW}"
     fi
 
-    patch_wrappers "$IS_NIX_UPGRADE"
-
     echo "9. Creating new data directory, initializing database"
     chown -R postgres:postgres "$MOUNT_POINT/"
     rm -rf "${PGDATANEW:?}/"
diff --git a/common-nix.vars.pkr.hcl b/common-nix.vars.pkr.hcl
index dd5d407f5..e5e2f4712 100644
--- a/common-nix.vars.pkr.hcl
+++ b/common-nix.vars.pkr.hcl
@@ -1 +1 @@
-postgres-version = "15.6.1.129"
+postgres-version = "15.6.1.130"
diff --git a/flake.nix b/flake.nix
index 1f9d5f64d..512d32d31 100644
--- a/flake.nix
+++ b/flake.nix
@@ -107,6 +107,7 @@
         ourExtensions = [
           ./nix/ext/rum.nix
           ./nix/ext/timescaledb.nix
+          ./nix/ext/timescaledb-2.9.1.nix
           ./nix/ext/pgroonga.nix
           ./nix/ext/index_advisor.nix
           ./nix/ext/wal2json.nix
diff --git a/nix/ext/plv8.nix b/nix/ext/plv8.nix
index 5cb4fb67e..338bba62e 100644
--- a/nix/ext/plv8.nix
+++ b/nix/ext/plv8.nix
@@ -103,16 +103,20 @@ stdenv.mkDerivation (finalAttrs: {
     # so changing them does not cause issues.
     mv "$out/nix/store"/*/* "$out"
     rmdir "$out/nix/store"/* "$out/nix/store" "$out/nix"
-
+    mv "$out/lib/plv8-${finalAttrs.version}.so" "$out/lib/plv8.so"
+    ln -s "$out/lib/plv8.so" "$out/lib/plv8-${finalAttrs.version}.so"
+    sed -i 's|module_pathname = '"'"'$libdir/plv8-[0-9.]*'"'"'|module_pathname = '"'"'$libdir/plv8'"'"'|' "$out/share/postgresql/extension/plv8.control"
+    sed -i 's|module_pathname = '"'"'$libdir/plv8-[0-9.]*'"'"'|module_pathname = '"'"'$libdir/plv8'"'"'|' "$out/share/postgresql/extension/plcoffee.control"
+    sed -i 's|module_pathname = '"'"'$libdir/plv8-[0-9.]*'"'"'|module_pathname = '"'"'$libdir/plv8'"'"'|' "$out/share/postgresql/extension/plls.control"
     ${lib.optionalString stdenv.isDarwin ''
-      install_name_tool -add_rpath "${v8}/lib" $out/lib/plv8-${finalAttrs.version}.so
-      install_name_tool -add_rpath "${postgresql}/lib" $out/lib/plv8-${finalAttrs.version}.so
-      install_name_tool -add_rpath "${stdenv.cc.cc.lib}/lib" $out/lib/plv8-${finalAttrs.version}.so
-      install_name_tool -change @rpath/libv8_monolith.dylib ${v8}/lib/libv8_monolith.dylib $out/lib/plv8-${finalAttrs.version}.so
+      install_name_tool -add_rpath "${v8}/lib" $out/lib/plv8.so
+      install_name_tool -add_rpath "${postgresql}/lib" $out/lib/plv8.so
+      install_name_tool -add_rpath "${stdenv.cc.cc.lib}/lib" $out/lib/plv8.so
+      install_name_tool -change @rpath/libv8_monolith.dylib ${v8}/lib/libv8_monolith.dylib $out/lib/plv8.so
     ''}
 
     ${lib.optionalString (!stdenv.isDarwin) ''
-      ${patchelf}/bin/patchelf --set-rpath "${v8}/lib:${postgresql}/lib:${stdenv.cc.cc.lib}/lib" $out/lib/plv8-${finalAttrs.version}.so
+      ${patchelf}/bin/patchelf --set-rpath "${v8}/lib:${postgresql}/lib:${stdenv.cc.cc.lib}/lib" $out/lib/plv8.so
     ''}
   '';
 
diff --git a/nix/ext/timescaledb-2.9.1.nix b/nix/ext/timescaledb-2.9.1.nix
new file mode 100644
index 000000000..ad955e86f
--- /dev/null
+++ b/nix/ext/timescaledb-2.9.1.nix
@@ -0,0 +1,51 @@
+{ lib, stdenv, fetchFromGitHub, cmake, postgresql, openssl, libkrb5 }:
+
+stdenv.mkDerivation rec {
+  pname = "timescaledb-apache";
+  version = "2.9.1";
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ postgresql openssl libkrb5 ];
+
+  src = fetchFromGitHub {
+    owner = "timescale";
+    repo = "timescaledb";
+    rev = version;
+    hash = "sha256-fvVSxDiGZAewyuQ2vZDb0I6tmlDXl6trjZp8+qDBtb8=";
+  };
+
+  cmakeFlags = [ "-DSEND_TELEMETRY_DEFAULT=OFF" "-DREGRESS_CHECKS=OFF" "-DTAP_CHECKS=OFF" "-DAPACHE_ONLY=1" ]
+    ++ lib.optionals stdenv.isDarwin [ "-DLINTER=OFF" ];
+
+  # Fix the install phase which tries to install into the pgsql extension dir,
+  # and cannot be manually overridden. This is rather fragile but works OK.
+  postPatch = ''
+    for x in CMakeLists.txt sql/CMakeLists.txt; do
+      substituteInPlace "$x" \
+        --replace 'DESTINATION "''${PG_SHAREDIR}/extension"' "DESTINATION \"$out/share/postgresql/extension\""
+    done
+
+    for x in src/CMakeLists.txt src/loader/CMakeLists.txt tsl/src/CMakeLists.txt; do
+      substituteInPlace "$x" \
+        --replace 'DESTINATION ''${PG_PKGLIBDIR}' "DESTINATION \"$out/lib\""
+    done
+  '';
+
+
+  # timescaledb-2.9.1.so already exists in the lib directory
+  # we have no need for the timescaledb.so or control file
+  postInstall = ''
+    rm $out/lib/timescaledb.so
+    rm $out/share/postgresql/extension/timescaledb.control
+  '';
+
+  meta = with lib; {
+    description = "Scales PostgreSQL for time-series data via automatic partitioning across time and space";
+    homepage = "https://www.timescale.com/";
+    changelog = "https://github.com/timescale/timescaledb/blob/${version}/CHANGELOG.md";
+    maintainers = with maintainers; [ samrose ];
+    platforms = postgresql.meta.platforms;
+    license = licenses.asl20;
+    broken = versionOlder postgresql.version "13";
+  };
+}
diff --git a/nix/ext/wrappers/default.nix b/nix/ext/wrappers/default.nix
index 98d6a7cbc..808946d3a 100644
--- a/nix/ext/wrappers/default.nix
+++ b/nix/ext/wrappers/default.nix
@@ -63,24 +63,52 @@ buildPgrxExtension_0_11_3 rec {
     echo '${builtins.concatStringsSep "," previousVersions}' | sed 's/,/\n/g' > git_tags.txt
   '';
 
-  postInstall = ''
-    echo "Creating SQL files for previous versions..."
-    current_version="${version}"
-    sql_file="$out/share/postgresql/extension/wrappers--$current_version.sql"
-    
-    if [ -f "$sql_file" ]; then
-      while read -r previous_version; do
-        if [ "$(printf '%s\n' "$previous_version" "$current_version" | sort -V | head -n1)" = "$previous_version" ] && [ "$previous_version" != "$current_version" ]; then
-          new_file="$out/share/postgresql/extension/wrappers--$previous_version--$current_version.sql"
-          echo "Creating $new_file"
-          cp "$sql_file" "$new_file"
-        fi
-      done < git_tags.txt
-    else
-      echo "Warning: $sql_file not found"
-    fi
-    rm git_tags.txt
-  '';
+ postInstall = ''
+   echo "Modifying main SQL file to use unversioned library name..."
+   current_version="${version}"
+   main_sql_file="$out/share/postgresql/extension/wrappers--$current_version.sql"
+   if [ -f "$main_sql_file" ]; then
+     sed -i 's|$libdir/wrappers-[0-9.]*|$libdir/wrappers|g' "$main_sql_file"
+     echo "Modified $main_sql_file"
+   else
+     echo "Warning: $main_sql_file not found"
+   fi
+   echo "Creating and modifying SQL files for previous versions..."
+   
+   if [ -f "$main_sql_file" ]; then
+     while read -r previous_version; do
+       if [ "$(printf '%s\n' "$previous_version" "$current_version" | sort -V | head -n1)" = "$previous_version" ] && [ "$previous_version" != "$current_version" ]; then
+         new_file="$out/share/postgresql/extension/wrappers--$previous_version--$current_version.sql"
+         echo "Creating $new_file"
+         cp "$main_sql_file" "$new_file"
+         sed -i 's|$libdir/wrappers-[0-9.]*|$libdir/wrappers|g' "$new_file"
+         echo "Modified $new_file"
+       fi
+     done < git_tags.txt
+   else
+     echo "Warning: $main_sql_file not found"
+   fi
+   mv $out/lib/wrappers-${version}.so $out/lib/wrappers.so
+ 
+  echo "Creating wrappers.so symlinks to support pg_upgrade..."
+  if [ -f "$out/lib/wrappers.so" ]; then
+    while read -r previous_version; do
+      if [ "$(printf '%s\n' "$previous_version" "$current_version" | sort -V | head -n1)" = "$previous_version" ] && [ "$previous_version" != "$current_version" ]; then
+        new_file="$out/lib/wrappers-$previous_version.so"
+        echo "Creating $new_file"
+        ln -s "$out/lib/wrappers.so" "$new_file"
+      fi
+    done < git_tags.txt
+  else
+    echo "Warning: $out/lib/wrappers.so not found"
+  fi
+
+   rm git_tags.txt
+   echo "Contents of updated wrappers.control:"
+   cat "$out/share/postgresql/extension/wrappers.control"
+   echo "List of generated SQL files:"
+   ls -l $out/share/postgresql/extension/wrappers--*.sql
+ '';
 
   meta = with lib; {
     description = "Various Foreign Data Wrappers (FDWs) for PostreSQL";