diff --git a/inc/class-mexp-resource-space-service.php b/inc/class-mexp-resource-space-service.php
index 353a338..388ea07 100644
--- a/inc/class-mexp-resource-space-service.php
+++ b/inc/class-mexp-resource-space-service.php
@@ -151,9 +151,9 @@ public function tabs( array $tabs ) {
 	 */
 	public function labels( array $labels ) {
 	 	$labels['resource-space'] = array(
-			'insert'    => __( 'Insert Image', 'resourcespace' ),
-			'noresults' => __( 'No images matched your search query.', 'resourcespace' ),
-			'title'     => __( 'Insert Stock Photo', 'resourcespace' ),
+			'insert'    => esc_html__( 'Insert Image', 'resourcespace' ),
+			'noresults' => esc_html__( 'No images matched your search query.', 'resourcespace' ),
+			'title'     => esc_html__( 'Insert Stock Photo', 'resourcespace' ),
 		);
 
 	 	return $labels;
diff --git a/inc/class-resource-space-admin.php b/inc/class-resource-space-admin.php
index 54f6336..47e7a76 100644
--- a/inc/class-resource-space-admin.php
+++ b/inc/class-resource-space-admin.php
@@ -39,8 +39,8 @@ public function setup_actions() {
 	function admin_menu() {
 
 		add_media_page(
-			__( 'Stock Photos', 'resourcespace' ),
-			__( 'Stock Photos', 'resourcespace' ),
+			esc_html__( 'Stock Photos', 'resourcespace' ),
+			esc_html__( 'Stock Photos', 'resourcespace' ),
 			'insert_from_resourcespace',
 			'resourcespace',
 			array( $this, 'render_page' )
diff --git a/inc/class-resource-space-loader.php b/inc/class-resource-space-loader.php
index f53203b..aa2b01a 100644
--- a/inc/class-resource-space-loader.php
+++ b/inc/class-resource-space-loader.php
@@ -32,7 +32,7 @@ function ajax_get_image() {
 		$parent_post_id = isset( $_POST['post'] ) ? intval( $_POST['post'] ) : 0;
 
 		if ( empty( $resource_id ) ) {
-			wp_send_json_error( __( 'Empty resource id', 'resourcespace' ) );
+			wp_send_json_error( esc_html__( 'Empty resource id', 'resourcespace' ) );
 		}
 
 		$url = PJ_RESOURCE_SPACE_DOMAIN . '/plugins/api_search/';
@@ -58,11 +58,11 @@ function ajax_get_image() {
 		if ( 200 == wp_remote_retrieve_response_code( $response ) ) {
 			$data = json_decode( wp_remote_retrieve_body( $response ) );
 		} else {
-			wp_send_json_error( __( 'Unable to query API', 'resourcespace' ) );
+			wp_send_json_error( esc_html__( 'Unable to query API', 'resourcespace' ) );
 		}
 
 		if ( count( $data ) < 1 ) {
-			wp_send_json_error( __( 'Resource not found', 'resourcespace' ) );
+			wp_send_json_error( esc_html__( 'Resource not found', 'resourcespace' ) );
 		}
 
 		// Request original URL.
@@ -132,17 +132,17 @@ private function sideload_image( $url ) {
 
 				} else {
 					unlink( $file );
-					return new WP_Error( 'broke', __( 'Could not create attachment', 'resourcespace' ) );
+					return new WP_Error( 'broke', esc_html__( 'Could not create attachment', 'resourcespace' ) );
 				}
 			} else {
 				unlink( $file );
-				return new WP_Error( 'broke', __( 'Upload error', 'resourcespace' ) );
+				return new WP_Error( 'broke', esc_html__( 'Upload error', 'resourcespace' ) );
 			}
 
 			unlink( $file );
 
 		} else {
-			return new WP_Error( 'broke', __( 'Unable to retrieve image', 'resourcespace' ) );
+			return new WP_Error( 'broke', esc_html__( 'Unable to retrieve image', 'resourcespace' ) );
 		}
 
 	}
diff --git a/resourcespace.php b/resourcespace.php
index 02e563d..d6c5cff 100644
--- a/resourcespace.php
+++ b/resourcespace.php
@@ -16,7 +16,7 @@
 defined( 'PJ_RESOURCE_SPACE_RESULTS_PER_PAGE' ) or define( 'PJ_RESOURCE_SPACE_RESULTS_PER_PAGE', 10 );
 
 if ( ! class_exists( 'MEXP_Service' ) ) {
-	wp_die( __( 'Media Explorer plugin must be enabled.', 'resourcespace' ) );
+	wp_die( esc_html__( 'Media Explorer plugin must be enabled.', 'resourcespace' ) );
 }
 
 require_once( __DIR__ . '/inc/class-resource-space-loader.php' );
@@ -54,8 +54,8 @@ function resource_space_vc_script() {
 	wp_enqueue_script( 'resource-space-vc', plugins_url( 'js/resource-space-vc.js', __FILE__ ), array( 'wpb_jscomposer_media_editor_js' ), null, true );
 
 	wp_localize_script( 'resource-space-vc', 'resourceSpaceVC', array(
-		'stockImagesTabText'    => __( 'Stock Images', 'resourcespace' ),
-		'stockImagesInsertText' => __( 'Import', 'resourcespace' ),
+		'stockImagesTabText'    => esc_html__( 'Stock Images', 'resourcespace' ),
+		'stockImagesInsertText' => esc_html__( 'Import', 'resourcespace' ),
 	) );
 
 }