diff --git a/docs/conf.py b/docs/conf.py
index 124f0f9ad..62a7cea07 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -315,5 +315,5 @@ texinfo_documents = [
 
 intersphinx_mapping = {
     'python': ('https://docs.python.org/', None),
-    'acme': ('https://acme-python.readthedocs.org', None),
+    'acme': ('https://acme-python.readthedocs.org/en/latest/', None),
 }
diff --git a/letsencrypt-apache/docs/conf.py b/letsencrypt-apache/docs/conf.py
index e439428af..ddbf09262 100644
--- a/letsencrypt-apache/docs/conf.py
+++ b/letsencrypt-apache/docs/conf.py
@@ -313,6 +313,6 @@ texinfo_documents = [
 
 intersphinx_mapping = {
     'python': ('https://docs.python.org/', None),
-    'acme': ('https://acme-python.readthedocs.org', None),
-    'letsencrypt': ('https://letsencrypt.readthedocs.org', None),
+    'acme': ('https://acme-python.readthedocs.org/en/latest/', None),
+    'letsencrypt': ('https://letsencrypt.readthedocs.org/en/latest/', None),
 }
diff --git a/letsencrypt-compatibility-test/docs/conf.py b/letsencrypt-compatibility-test/docs/conf.py
index 5a63c1dca..7e9f0d5a4 100644
--- a/letsencrypt-compatibility-test/docs/conf.py
+++ b/letsencrypt-compatibility-test/docs/conf.py
@@ -307,8 +307,8 @@ texinfo_documents = [
 
 intersphinx_mapping = {
     'python': ('https://docs.python.org/', None),
-    'acme': ('https://acme-python.readthedocs.org', None),
-    'letsencrypt': ('https://letsencrypt.readthedocs.org', None),
-    'letsencrypt-apache': ('https://letsencrypt-apache.readthedocs.org', None),
-    'letsencrypt-nginx': ('https://letsencrypt-nginx.readthedocs.org', None),
+    'acme': ('https://acme-python.readthedocs.org/en/latest/', None),
+    'letsencrypt': ('https://letsencrypt.readthedocs.org/en/latest/', None),
+    'letsencrypt-apache': ('https://letsencrypt-apache.readthedocs.org/en/latest/', None),
+    'letsencrypt-nginx': ('https://letsencrypt-nginx.readthedocs.org/en/latest/', None),
 }
diff --git a/letsencrypt-nginx/docs/conf.py b/letsencrypt-nginx/docs/conf.py
index 8bcae3a78..cdb3490a0 100644
--- a/letsencrypt-nginx/docs/conf.py
+++ b/letsencrypt-nginx/docs/conf.py
@@ -306,6 +306,6 @@ texinfo_documents = [
 
 intersphinx_mapping = {
     'python': ('https://docs.python.org/', None),
-    'acme': ('https://acme-python.readthedocs.org', None),
-    'letsencrypt': ('https://letsencrypt.readthedocs.org', None),
+    'acme': ('https://acme-python.readthedocs.org/en/latest/', None),
+    'letsencrypt': ('https://letsencrypt.readthedocs.org/en/latest/', None),
 }
diff --git a/letshelp-letsencrypt/docs/conf.py b/letshelp-letsencrypt/docs/conf.py
index abbf3621d..206b0b9e2 100644
--- a/letshelp-letsencrypt/docs/conf.py
+++ b/letshelp-letsencrypt/docs/conf.py
@@ -306,6 +306,6 @@ texinfo_documents = [
 
 intersphinx_mapping = {
     'python': ('https://docs.python.org/', None),
-    'acme': ('https://acme-python.readthedocs.org', None),
-    'letsencrypt': ('https://letsencrypt.readthedocs.org', None),
+    'acme': ('https://acme-python.readthedocs.org/en/latest/', None),
+    'letsencrypt': ('https://letsencrypt.readthedocs.org/en/latest/', None),
 }