diff --git a/jquery.flot.axislabels.js b/jquery.flot.axislabels.js
index c4b3bca..3e1fdd9 100644
--- a/jquery.flot.axislabels.js
+++ b/jquery.flot.axislabels.js
@@ -384,11 +384,10 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
                         if (!opts.axisLabelUseHtml &&
                             navigator.appName == 'Microsoft Internet Explorer') {
                             var ua = navigator.userAgent;
-                            var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
-                            if (re.exec(ua) != null) {
-                                rv = parseFloat(RegExp.$1);
-                            }
-                            if (rv >= 9 && !opts.axisLabelUseCanvas && !opts.axisLabelUseHtml) {
+                            // https://stackoverflow.com/questions/29296524/regex-to-detect-ie-5-6-7-and-8-but-no-others/
+                            var re  = new RegExp("^.*MSIE [5-8](?:\.[0-9]+)?(?!.*Trident\/[5-9]\.0).*$");
+                            var rer = re.exec(ua);
+                            if (rer == null && !opts.axisLabelUseCanvas && !opts.axisLabelUseHtml) {
                                 renderer = CssTransformAxisLabel;
                             } else if (!opts.axisLabelUseCanvas && !opts.axisLabelUseHtml) {
                                 renderer = IeTransformAxisLabel;