diff --git a/framework/caching/ZendDataCache.php b/framework/caching/ZendDataCache.php
index ed2eac0c0a..0f49501db4 100644
--- a/framework/caching/ZendDataCache.php
+++ b/framework/caching/ZendDataCache.php
@@ -10,7 +10,7 @@ namespace yii\caching;
/**
* ZendDataCache provides Zend data caching in terms of an application component.
*
- * To use this application component, the [Zend Data Cache PHP extension](http://www.zend.com/en/products/server/)
+ * To use this application component, the [Zend Data Cache PHP extension](https://www.zend.com/products/zend-server)
* must be loaded.
*
* See [[Cache]] for common cache operations that ZendDataCache supports.
diff --git a/framework/captcha/SpicyRice.md b/framework/captcha/SpicyRice.md
index 7049bd127a..563f75453d 100644
--- a/framework/captcha/SpicyRice.md
+++ b/framework/captcha/SpicyRice.md
@@ -1,11 +1,11 @@
## Spicy Rice font
* **Author:** Brian J. Bonislawsky, Astigmatic (AOETI, Astigmatic One Eye Typographic Institute)
-* **License:** SIL Open Font License (OFL), version 1.1, [notes and FAQ](http://scripts.sil.org/OFL)
+* **License:** SIL Open Font License (OFL), version 1.1, [notes and FAQ](https://scripts.sil.org/OFL)
## Links
* [Astigmatic](http://www.astigmatic.com/)
-* [Google WebFonts](http://www.google.com/webfonts/specimen/Spicy+Rice)
-* [fontsquirrel.com](http://www.fontsquirrel.com/fonts/spicy-rice)
-* [fontspace.com](http://www.fontspace.com/astigmatic-one-eye-typographic-institute/spicy-rice)
+* [Google WebFonts](https://fonts.google.com/specimen/Spicy+Rice)
+* [fontsquirrel.com](https://www.fontsquirrel.com/fonts/spicy-rice)
+* [fontspace.com](https://www.fontspace.com/astigmatic-one-eye-typographic-institute/spicy-rice)
diff --git a/framework/views/errorHandler/exception.php b/framework/views/errorHandler/exception.php
index 4601e7c42b..e22498984a 100644
--- a/framework/views/errorHandler/exception.php
+++ b/framework/views/errorHandler/exception.php
@@ -393,7 +393,7 @@ body.mousedown pre {
@@ -451,7 +451,7 @@ body.mousedown pre {
