diff --git a/doc/md/base/OrderedMap.md b/doc/md/base/OrderedMap.md
index 6a2302f3fc8..e5c371c2971 100644
--- a/doc/md/base/OrderedMap.md
+++ b/doc/md/base/OrderedMap.md
@@ -19,7 +19,7 @@ Credits:
 The core of this implementation is derived from:
 
 * Ken Friis Larsen's [RedBlackMap.sml](https://github.com/kfl/mosml/blob/master/src/mosmllib/Redblackmap.sml), which itself is based on:
-* Stefan Kahrs, "Red-black trees with types", Journal of Functional Programming, 11(4): 425-432 (2001), [version 1 in web appendix](http://www.cs.ukc.ac.uk/people/staff/smk/redblack/rb.html).
+* Stefan Kahrs, "Red-black trees with types", Journal of Functional Programming, 11(4): 425-432 (2001), [version 1 in web appendix](https://www.cs.ukc.ac.uk/people/staff/smk/redblack/rb.html).
 
 ## Type `Map`
 ``` motoko no-repl
diff --git a/doc/md/base/OrderedSet.md b/doc/md/base/OrderedSet.md
index 97495b55ef3..cbe98e20b8c 100644
--- a/doc/md/base/OrderedSet.md
+++ b/doc/md/base/OrderedSet.md
@@ -16,7 +16,7 @@ Credits:
 The core of this implementation is derived from:
 
 * Ken Friis Larsen's [RedBlackMap.sml](https://github.com/kfl/mosml/blob/master/src/mosmllib/Redblackmap.sml), which itself is based on:
-* Stefan Kahrs, "Red-black trees with types", Journal of Functional Programming, 11(4): 425-432 (2001), [version 1 in web appendix](http://www.cs.ukc.ac.uk/people/staff/smk/redblack/rb.html).
+* Stefan Kahrs, "Red-black trees with types", Journal of Functional Programming, 11(4): 425-432 (2001), [version 1 in web appendix](https://www.cs.ukc.ac.uk/people/staff/smk/redblack/rb.html).
 
 ## Type `Set`
 ``` motoko no-repl
diff --git a/doc/md/base/RBTree.md b/doc/md/base/RBTree.md
index c767a247325..7f5c17f8f24 100644
--- a/doc/md/base/RBTree.md
+++ b/doc/md/base/RBTree.md
@@ -38,7 +38,7 @@ Credits:
 The core of this implementation is derived from:
 
 * Ken Friis Larsen's [RedBlackMap.sml](https://github.com/kfl/mosml/blob/master/src/mosmllib/Redblackmap.sml), which itself is based on:
-* Stefan Kahrs, "Red-black trees with types", Journal of Functional Programming, 11(4): 425-432 (2001), [version 1 in web appendix](http://www.cs.ukc.ac.uk/people/staff/smk/redblack/rb.html).
+* Stefan Kahrs, "Red-black trees with types", Journal of Functional Programming, 11(4): 425-432 (2001), [version 1 in web appendix](https://www.cs.ukc.ac.uk/people/staff/smk/redblack/rb.html).
 
 ## Type `Color`
 ``` motoko no-repl
diff --git a/doc/md/writing-motoko/pattern-matching.md b/doc/md/writing-motoko/pattern-matching.md
index 25c76155660..e4bd0850549 100644
--- a/doc/md/writing-motoko/pattern-matching.md
+++ b/doc/md/writing-motoko/pattern-matching.md
@@ -130,6 +130,6 @@ These blocks allow for safe unwrapping of optional values using a postfix `!` op
 Each use of `!` within the block is equivalent to a switch statement on an option, but with an added benefit: if `!` is applied to a `null` value,  the entire block immediately abandons execution and returns `null`. 
 This short-circuiting behavior simplifies the handling of multiple optional values in a more concise and readable manner.
 
-For an example, see [option blocks and null breaks](control-flow#option-blocks-and-null-breaks).
+For an example, see [option blocks and null breaks](./control-flow#option-blocks-and-null-breaks).
 
 <img src="https://github.com/user-attachments/assets/844ca364-4d71-42b3-aaec-4a6c3509ee2e" alt="Logo" width="150" height="150" />
\ No newline at end of file