diff --git a/Makefile b/Makefile
index 68bee68..805e4db 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ app-install: ## to install app
 	composer install --prefer-dist
 
 app-security-check: ## to check if any security issues in the PHP dependencies
-	vendor/bin/security-checker security:check --end-point=http://security.sensiolabs.org/check_lock
+	vendor/bin/security-checker security:check
 
 app-static-analysis: ## to run static analysis
 	php -dmemory_limit=-1 vendor/bin/phpstan analyze src tests -l 7
diff --git a/src/Rules/BannedNodesRule.php b/src/Rules/BannedNodesRule.php
index a7befd0..276d590 100644
--- a/src/Rules/BannedNodesRule.php
+++ b/src/Rules/BannedNodesRule.php
@@ -13,6 +13,7 @@
 
 use PhpParser\Node;
 use PhpParser\Node\Expr\FuncCall;
+use PhpParser\Node\Expr\Variable;
 use PhpParser\Node\Name;
 use PHPStan\Analyser\Scope;
 use PHPStan\Rules\Rule;
@@ -55,6 +56,10 @@ public function processNode(Node $node, Scope $scope): array
         }
 
         if ($node instanceof FuncCall) {
+            if ($node->name instanceof Variable) {
+                return [];
+            }
+
             if (!$node->name instanceof Name) {
                 throw new \RuntimeException(sprintf('Expected instance of %s for $node->name, %s given', Name::class, \get_class($node->name)));
             }
diff --git a/tests/Rules/BannedNodesRuleTest.php b/tests/Rules/BannedNodesRuleTest.php
index f17f256..238253a 100644
--- a/tests/Rules/BannedNodesRuleTest.php
+++ b/tests/Rules/BannedNodesRuleTest.php
@@ -18,6 +18,7 @@
 use PhpParser\Node\Expr\Exit_;
 use PhpParser\Node\Expr\FuncCall;
 use PhpParser\Node\Expr\Include_;
+use PhpParser\Node\Expr\Variable;
 use PhpParser\Node\Name;
 use PHPStan\Analyser\Scope;
 use PHPUnit\Framework\MockObject\MockObject;
@@ -39,9 +40,9 @@ class BannedNodesRuleTest extends TestCase
     private $scope;
 
     /**
-     * Initializes the tests.
+     * {@inheritdoc}
      */
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->rule  = new BannedNodesRule([
             ['type' => 'Stmt_Echo'],
@@ -55,7 +56,7 @@ protected function setUp()
     /**
      * Tests getNodeType.
      */
-    public function testGetNodeType()
+    public function testGetNodeType(): void
     {
         $this->assertSame(Node::class, $this->rule->getNodeType());
     }
@@ -67,7 +68,7 @@ public function testGetNodeType()
      *
      * @dataProvider getUnhandledNodes
      */
-    public function testProcessNodeWithUnhandledType(Expr $node)
+    public function testProcessNodeWithUnhandledType(Expr $node): void
     {
         $this->assertCount(0, $this->rule->processNode($node, $this->scope));
     }
@@ -75,7 +76,7 @@ public function testProcessNodeWithUnhandledType(Expr $node)
     /**
      * Tests processNode with banned/allowed functions.
      */
-    public function testProcessNodeWithFunctions()
+    public function testProcessNodeWithFunctions(): void
     {
         foreach (['debug_backtrace', 'dump'] as $bannedFunction) {
             $node = new FuncCall(new Name($bannedFunction));
@@ -88,6 +89,10 @@ public function testProcessNodeWithFunctions()
 
             $this->assertCount(0, $this->rule->processNode($node, $this->scope));
         }
+
+        $node = new FuncCall(new Variable('myClosure'));
+
+        $this->assertCount(0, $this->rule->processNode($node, $this->scope));
     }
 
     /**
@@ -97,7 +102,7 @@ public function testProcessNodeWithFunctions()
      *
      * @dataProvider getHandledNodes
      */
-    public function testProcessNodeWithHandledTypes(Expr $node)
+    public function testProcessNodeWithHandledTypes(Expr $node): void
     {
         $this->assertCount(1, $this->rule->processNode($node, $this->scope));
     }
@@ -105,7 +110,7 @@ public function testProcessNodeWithHandledTypes(Expr $node)
     /**
      * @return \Generator
      */
-    public function getUnhandledNodes()
+    public function getUnhandledNodes(): \Generator
     {
         yield [new Include_($this->createMock(Expr::class), Include_::TYPE_INCLUDE)];
     }
@@ -113,7 +118,7 @@ public function getUnhandledNodes()
     /**
      * @return \Generator
      */
-    public function getHandledNodes()
+    public function getHandledNodes(): \Generator
     {
         yield [new Eval_($this->createMock(Expr::class))];
         yield [new Exit_()];
diff --git a/tests/Rules/BannedUseTestRuleTest.php b/tests/Rules/BannedUseTestRuleTest.php
index 16a87c4..f08fca5 100644
--- a/tests/Rules/BannedUseTestRuleTest.php
+++ b/tests/Rules/BannedUseTestRuleTest.php
@@ -36,9 +36,9 @@ class BannedUseTestRuleTest extends TestCase
     private $scope;
 
     /**
-     * Initializes the tests.
+     * {@inheritdoc}
      */
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->rule  = new BannedUseTestRule();
         $this->scope = $this->createMock(Scope::class);
@@ -47,7 +47,7 @@ protected function setUp()
     /**
      * Tests getNodeType.
      */
-    public function testGetNodeType()
+    public function testGetNodeType(): void
     {
         $this->assertSame(Use_::class, $this->rule->getNodeType());
     }
@@ -55,7 +55,7 @@ public function testGetNodeType()
     /**
      * Tests processNode if disabled.
      */
-    public function testProcessNodeIfDisabled()
+    public function testProcessNodeIfDisabled(): void
     {
         $this->scope->expects($this->never())->method('getNamespace');
 
@@ -65,7 +65,7 @@ public function testProcessNodeIfDisabled()
     /**
      * Tests processNode with test scope.
      */
-    public function testProcessNodeWithTestScope()
+    public function testProcessNodeWithTestScope(): void
     {
         $this->scope->expects($this->once())->method('getNamespace')->willReturn('Tests\\Foo\\Bar');
 
@@ -77,7 +77,7 @@ public function testProcessNodeWithTestScope()
      *
      * @expectedException \InvalidArgumentException
      */
-    public function testProcessNodeThrowsException()
+    public function testProcessNodeThrowsException(): void
     {
         $this->scope->expects($this->once())->method('getNamespace')->willReturn('Foo\\Bar');
 
@@ -87,7 +87,7 @@ public function testProcessNodeThrowsException()
     /**
      * Tests processNode with errors.
      */
-    public function testProcessNodeWithErrors()
+    public function testProcessNodeWithErrors(): void
     {
         $this->scope->expects($this->once())->method('getNamespace')->willReturn('Foo\\Bar');