diff --git a/extra/json-c/checksums b/extra/json-c/checksums
index 0ab559f2..3f881b0a 100644
--- a/extra/json-c/checksums
+++ b/extra/json-c/checksums
@@ -1 +1 @@
-af89dc39ef13bfd94f9033431b67c933c7397d03d0e7b0e03f93ae7d521da170cb
+adc5d92666507b0746962226bd009d33c4db2195cc7aff079e40bd83ec2ffad0f1
diff --git a/extra/json-c/sources b/extra/json-c/sources
index 2b0cd05f..89004851 100644
--- a/extra/json-c/sources
+++ b/extra/json-c/sources
@@ -1 +1 @@
-https://s3.amazonaws.com/json-c_releases/releases/json-c-0.17.tar.gz
+https://s3.amazonaws.com/json-c_releases/releases/json-c-0.18.tar.gz
diff --git a/extra/json-c/version b/extra/json-c/version
index dc75c933..23ca89d5 100644
--- a/extra/json-c/version
+++ b/extra/json-c/version
@@ -1 +1 @@
-0.17 1
+0.18 1