diff --git a/tools/bump-lib-versions.sh b/tools/bump-lib-versions.sh
index d266bcb778..68b5b720a6 100755
--- a/tools/bump-lib-versions.sh
+++ b/tools/bump-lib-versions.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# Copyright (C) 2020-2024 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2020-2025 Internet Systems Consortium, Inc. ("ISC")
 #
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -120,22 +120,23 @@ middle=$(echo "${new_release_tag}" | cut -d '-' -f 2 | cut -d '.' -f 2)
 minor=$(echo "${new_release_tag}" | cut -d '-' -f 2 | cut -d '.' -f 3)
 new_hooks_version="${major}$(printf '%02d' "${middle}")$(printf '%02d' "${minor}")"
 
-sed -i "s/^\/\/ Version .* of the hooks framework, set for Kea .*/\/\/ Version ${new_hooks_version} of the hooks framework, set for $(echo "${new_release_tag}" | tr '-' ' ')/" "src/lib/hooks/hooks.h"
-sed -i "s/KEA_HOOKS_VERSION.*/KEA_HOOKS_VERSION = ${new_hooks_version};/" "src/lib/hooks/hooks.h"
+sed -i'' "s/^\/\/ Version .* of the hooks framework, set for Kea .*/\/\/ Version ${new_hooks_version} of the hooks framework, set for $(echo "${new_release_tag}" | tr '-' ' ')/" "src/lib/hooks/hooks.h"
+sed -i'' "s/KEA_HOOKS_VERSION.*/KEA_HOOKS_VERSION = ${new_hooks_version};/" "src/lib/hooks/hooks.h"
 
 for lib in $(git diff --name-only "${old_release_tag}" src/lib | cut -d '/' -f 3- | grep -v test | sed "s/\/[^\/]*$//" | sort -uV); do
   # Skip over files and anything that is not a directory.
   if test ! -d "src/lib/${lib}"; then
     continue
   fi
-  # Skip over directories that do not contain Makefile.am.
-  if test ! -f "src/lib/${lib}/Makefile.am"; then
+  # Skip over directories that do not contain a meson.build file.
+  if test ! -f "src/lib/${lib}/meson.build"; then
     continue
   fi
 
-  old_version=$(grep -- '-version-info' "src/lib/${lib}/Makefile.am" | tr -s ' ' | rev | cut -d ' ' -f 1 | rev | cut -d ':' -f 1)
+  old_version=$(grep -Eo "version: '[0-9.]+'," "src/lib/${lib}/meson.build" | grep -Eo '[0-9.]+' | cut -d '.' -f 1)
   new_version=$((old_version + increment))
-  sed -i "s/version-info .*/version-info ${new_version}:0:0/" "src/lib/${lib}/Makefile.am"
+  sed -i'' "s/version: '.*',/version: '${new_version}.0.0',/" "src/lib/${lib}/meson.build"
+  sed -i'' "s/version-info .*/version-info ${new_version}:0:0/" "src/lib/${lib}/Makefile.am"
 done
 
 if ! ${is_new_tag_stable_release} && ${is_old_tag_stable_release}; then
@@ -144,14 +145,15 @@ if ! ${is_new_tag_stable_release} && ${is_old_tag_stable_release}; then
     if test ! -d "src/lib/${lib}"; then
       continue
     fi
-    # Skip over directories that do not contain Makefile.am.
-    if test ! -f "src/lib/${lib}/Makefile.am"; then
+    # Skip over directories that do not contain a meson.build file.
+    if test ! -f "src/lib/${lib}/meson.build"; then
       continue
     fi
 
-    old_version=$(grep -- '-version-info' "src/lib/${lib}/Makefile.am" | tr -s ' ' | rev | cut -d ' ' -f 1 | rev | cut -d ':' -f 1)
+    old_version=$(grep -Eo "version: '[0-9.]+'," "src/lib/${lib}/meson.build" | grep -Eo '[0-9.]+' | cut -d '.' -f 1)
     new_version=$((old_version + increment_extra))
-    sed -i "s/version-info .*/version-info ${new_version}:0:0/" "src/lib/${lib}/Makefile.am"
+    sed -i'' "s/version: '.*',/version: '${new_version}.0.0',/" "src/lib/${lib}/meson.build"
+    sed -i'' "s/version-info .*/version-info ${new_version}:0:0/" "src/lib/${lib}/Makefile.am"
   done
 fi