diff --git a/src/kauthaction.cpp b/src/kauthaction.cpp
--- a/src/kauthaction.cpp
+++ b/src/kauthaction.cpp
@@ -20,7 +20,7 @@
 #include "kauthaction.h"
 
 #include <QtGlobal>
-#include <QRegExp>
+#include <QRegularExpression>
 
 class QWidget;
 
@@ -123,8 +123,10 @@
         d->valid = BackendsManager::authBackend()->actionExists(name);
     } else {
         // Otherwise, check through a regexp
-        QRegExp exp(QLatin1String("[0-z]+(\\.[0-z]+)*"));
-        d->valid = exp.exactMatch(name);
+        // TODO: with Qt 5.12 QRegularExpression::anchoredPattern() can be used instead
+        // of \A and \z anchors
+        QRegularExpression re(QStringLiteral("\\A[0-z]+(\\.[0-z]+)*\\z"));
+        d->valid = re.match(name).hasMatch();
     }
 }
 
diff --git a/src/policy-gen/policy-gen.cpp b/src/policy-gen/policy-gen.cpp
--- a/src/policy-gen/policy-gen.cpp
+++ b/src/policy-gen/policy-gen.cpp
@@ -23,7 +23,7 @@
 
 #include <QCoreApplication>
 #include <QSettings>
-#include <QRegExp>
+#include <QRegularExpression>
 #include <QStringList>
 #include <QDebug>
 
@@ -71,13 +71,17 @@
 QList<Action> parse(QSettings &ini)
 {
     QList<Action> actions;
-    QRegExp actionExp(QLatin1String("[0-9a-z]+(\\.[0-9a-z]+)*"));
-    QRegExp descriptionExp(QLatin1String("description(?:\\[(\\w+)\\])?"));
-    QRegExp nameExp(QLatin1String("name(?:\\[(\\w+)\\])?"));
-    QRegExp policyExp(QLatin1String("yes|no|auth_self|auth_admin"));
+    // TODO: with Qt 5.12 QRegularExpression::anchoredPattern() can be used instead of the
+    // \A and \z anchors
+    QRegularExpression actionExp(QStringLiteral("\\A[0-9a-z]+(\\.[0-9a-z]+)*\\z"));
 
-    descriptionExp.setCaseSensitivity(Qt::CaseInsensitive);
-    nameExp.setCaseSensitivity(Qt::CaseInsensitive);
+    QRegularExpression descriptionExp(QStringLiteral("\\Adescription(?:\\[(\\w+)\\])?\\z")
+                                      , QRegularExpression::CaseInsensitiveOption);
+
+    QRegularExpression nameExp(QStringLiteral("\\Aname(?:\\[(\\w+)\\])?\\z")
+                               , QRegularExpression::CaseInsensitiveOption);
+
+    QRegularExpression policyExp(QStringLiteral("\\A(?:yes|no|auth_self|auth_admin)\\z"));
 
     const auto listChilds = ini.childGroups();
     for (const QString &name : listChilds) {
@@ -87,7 +91,7 @@
             continue;
         }
 
-        if (!actionExp.exactMatch(name)) {
+        if (!actionExp.match(name).hasMatch()) {
             qCritical("Wrong action syntax: %s\n", name.toLatin1().data());
             exit(1);
         }
@@ -97,17 +101,18 @@
 
         const auto listChildKeys = ini.childKeys();
         for (const QString &key : listChildKeys) {
-            if (descriptionExp.exactMatch(key)) {
-                QString lang = descriptionExp.capturedTexts().at(1);
+            QRegularExpressionMatch match;
+            if ((match = descriptionExp.match(key)).hasMatch()) {
+                QString lang = match.captured();
 
                 if (lang.isEmpty()) {
                     lang = QString::fromLatin1("en");
                 }
 
                 action.descriptions.insert(lang, ini.value(key).toString());
 
-            } else if (nameExp.exactMatch(key)) {
-                QString lang = nameExp.capturedTexts().at(1);
+            } else if ((match = nameExp.match(key)).hasMatch()) {
+                QString lang = match.captured();
 
                 if (lang.isEmpty()) {
                     lang = QString::fromLatin1("en");
@@ -117,15 +122,15 @@
 
             } else if (key.toLower() == QLatin1String("policy")) {
                 QString policy = ini.value(key).toString();
-                if (!policyExp.exactMatch(policy)) {
+                if (!policyExp.match(policy).hasMatch()) {
                     qCritical("Wrong policy: %s", policy.toLatin1().data());
                     exit(1);
                 }
                 action.policy = policy;
 
             } else if (key.toLower() == QLatin1String("policyinactive")) {
                 QString policyInactive = ini.value(key).toString();
-                if (!policyExp.exactMatch(policyInactive)) {
+                if (!policyExp.match(policyInactive).hasMatch()) {
                     qCritical("Wrong policy: %s", policyInactive.toLatin1().data());
                     exit(1);
                 }