diff --git a/deltachat-ffi/deltachat.h b/deltachat-ffi/deltachat.h
index ea1a7ccdc..20e5e6c6c 100644
--- a/deltachat-ffi/deltachat.h
+++ b/deltachat-ffi/deltachat.h
@@ -2561,7 +2561,7 @@ dc_lot_t*       dc_check_qr                  (dc_context_t* context, const char*
  *     the Verified-Group-Invite protocol is offered in the QR code;
  *     works for protected groups as well as for normal groups.
  *     If set to 0, the Setup-Contact protocol is offered in the QR code.
- *     See https://countermitm.readthedocs.io/en/latest/new.html
+ *     See https://securejoin.readthedocs.io/en/latest/new.html
  *     for details about both protocols.
  * @return The text that should go to the QR code,
  *     On errors, an empty QR code is returned, NULL is never returned.
@@ -2597,7 +2597,7 @@ char*           dc_get_securejoin_qr_svg         (dc_context_t* context, uint32_
  *
  * Subsequent calls of dc_join_securejoin() will abort previous, unfinished handshakes.
  *
- * See https://countermitm.readthedocs.io/en/latest/new.html
+ * See https://securejoin.readthedocs.io/en/latest/new.html
  * for details about both protocols.
  *
  * @memberof dc_context_t
diff --git a/deltachat-jsonrpc/src/api.rs b/deltachat-jsonrpc/src/api.rs
index d7999e980..3d4fbf422 100644
--- a/deltachat-jsonrpc/src/api.rs
+++ b/deltachat-jsonrpc/src/api.rs
@@ -678,7 +678,7 @@ impl CommandApi {
     ///     the Verified-Group-Invite protocol is offered in the QR code;
     ///     works for protected groups as well as for normal groups.
     ///     If not set, the Setup-Contact protocol is offered in the QR code.
-    ///     See https://countermitm.readthedocs.io/en/latest/new.html
+    ///     See https://securejoin.readthedocs.io/en/latest/new.html
     ///     for details about both protocols.
     ///
     /// return format: `[code, svg]`
@@ -707,7 +707,7 @@ impl CommandApi {
     ///
     /// Subsequent calls of `secure_join()` will abort previous, unfinished handshakes.
     ///
-    /// See https://countermitm.readthedocs.io/en/latest/new.html
+    /// See https://securejoin.readthedocs.io/en/latest/new.html
     /// for details about both protocols.
     ///
     /// **qr**: The text of the scanned QR code. Typically, the same string as given
diff --git a/deltachat-rpc-client/src/deltachat_rpc_client/account.py b/deltachat-rpc-client/src/deltachat_rpc_client/account.py
index 5870c944c..1bc40b19a 100644
--- a/deltachat-rpc-client/src/deltachat_rpc_client/account.py
+++ b/deltachat-rpc-client/src/deltachat_rpc_client/account.py
@@ -218,7 +218,7 @@ class Account:
         The function returns immediately and the handshake runs in background, sending
         and receiving several messages.
         Subsequent calls of `secure_join()` will abort previous, unfinished handshakes.
-        See https://countermitm.readthedocs.io/en/latest/new.html for protocol details.
+        See https://securejoin.readthedocs.io/en/latest/new.html for protocol details.
 
         :param qrdata: The text of the scanned QR code.
         """
diff --git a/src/securejoin.rs b/src/securejoin.rs
index c91471f47..1eb9a53a4 100644
--- a/src/securejoin.rs
+++ b/src/securejoin.rs
@@ -1,4 +1,4 @@
-//! Verified contact protocol implementation as [specified by countermitm project](https://countermitm.readthedocs.io/en/stable/new.html#setup-contact-protocol).
+//! Verified contact protocol implementation as [specified by countermitm project](https://securejoin.readthedocs.io/en/latest/new.html#setup-contact-protocol).
 
 use std::convert::TryFrom;