diff --git a/config/lib.json b/config/lib.json
index 5e6189e6..a36afebd 100644
--- a/config/lib.json
+++ b/config/lib.json
@@ -311,8 +311,7 @@
         ],
         "lib-suggests-windows": [
             "icu",
-            "xz",
-            "pthreads4w"
+            "xz"
         ]
     },
     "libxslt": {
@@ -450,18 +449,6 @@
             "zstd"
         ]
     },
-    "pthreads4w": {
-        "source": "pthreads4w",
-        "static-libs-windows": [
-            "libpthreadVC3.lib"
-        ],
-        "headers-windows": [
-            "_ptw32.h",
-            "pthread.h",
-            "sched.h",
-            "semaphore.h"
-        ]
-    },
     "readline": {
         "source": "readline",
         "static-libs-unix": [
diff --git a/config/source.json b/config/source.json
index 3595223d..99264f06 100644
--- a/config/source.json
+++ b/config/source.json
@@ -401,15 +401,6 @@
             "path": "LICENSE"
         }
     },
-    "pthreads4w": {
-        "type": "git",
-        "rev": "master",
-        "url": "https://github.com/jwinarske/pthreads4w",
-        "license": {
-            "type": "file",
-            "path": "LICENSE"
-        }
-    },
     "readline": {
         "type": "filelist",
         "url": "https://ftp.gnu.org/pub/gnu/readline/",