diff --git a/Python/coreconfig.c b/Python/coreconfig.c
index cd4ef22..845e4c9 100644
--- a/Python/coreconfig.c
+++ b/Python/coreconfig.c
@@ -1103,7 +1103,7 @@
 {
 #ifdef MS_WINDOWS
     char encoding[20];
-    PyOS_snprintf(encoding, sizeof(encoding), "cp%d", GetACP());
+    PyOS_snprintf(encoding, sizeof(encoding), "cp%u", GetACP());
 #elif defined(__ANDROID__) || defined(__VXWORKS__)
     const char *encoding = "UTF-8";
 #else
diff --git a/Python/dynload_win.c b/Python/dynload_win.c
index 129e04d..36918c3 100644
--- a/Python/dynload_win.c
+++ b/Python/dynload_win.c
@@ -256,7 +256,7 @@
                This should not happen if called correctly. */
             if (theLength == 0) {
                 message = PyUnicode_FromFormat(
-                    "DLL load failed with error code %d",
+                    "DLL load failed with error code %u",
                     errorCode);
             } else {
                 /* For some reason a \r\n
diff --git a/Python/getargs.c b/Python/getargs.c
index ba1a9d4..876f5c7 100644
--- a/Python/getargs.c
+++ b/Python/getargs.c
@@ -372,14 +372,14 @@
     if (nargs < min || max < nargs) {
         if (message == NULL)
             PyErr_Format(PyExc_TypeError,
-                         "%.150s%s takes %s %d argument%s (%ld given)",
+                         "%.150s%s takes %s %d argument%s (%zd given)",
                          fname==NULL ? "function" : fname,
                          fname==NULL ? "" : "()",
                          min==max ? "exactly"
                          : nargs < min ? "at least" : "at most",
                          nargs < min ? min : max,
                          (nargs < min ? min : max) == 1 ? "" : "s",
-                         Py_SAFE_DOWNCAST(nargs, Py_ssize_t, long));
+                         nargs);
         else
             PyErr_SetString(PyExc_TypeError, message);
         return cleanreturn(0, &freelist);
@@ -1741,7 +1741,7 @@
                 else {
                     PyErr_Format(PyExc_TypeError,
                                  "%.200s%s takes %s %d positional argument%s"
-                                 " (%d given)",
+                                 " (%zd given)",
                                  (fname == NULL) ? "function" : fname,
                                  (fname == NULL) ? "" : "()",
                                  (min != INT_MAX) ? "at most" : "exactly",
@@ -1826,7 +1826,7 @@
     if (skip) {
         PyErr_Format(PyExc_TypeError,
                      "%.200s%s takes %s %d positional argument%s"
-                     " (%d given)",
+                     " (%zd given)",
                      (fname == NULL) ? "function" : fname,
                      (fname == NULL) ? "" : "()",
                      (Py_MIN(pos, min) < i) ? "at least" : "exactly",
@@ -2194,7 +2194,7 @@
                 Py_ssize_t min = Py_MIN(pos, parser->min);
                 PyErr_Format(PyExc_TypeError,
                              "%.200s%s takes %s %d positional argument%s"
-                             " (%d given)",
+                             " (%zd given)",
                              (parser->fname == NULL) ? "function" : parser->fname,
                              (parser->fname == NULL) ? "" : "()",
                              min < parser->max ? "at least" : "exactly",
diff --git a/Python/hamt.c b/Python/hamt.c
index aa90d37..67af04c 100644
--- a/Python/hamt.c
+++ b/Python/hamt.c
@@ -2005,7 +2005,7 @@
             goto error;
         }
 
-        if (_hamt_dump_format(writer, "%d::\n", i)) {
+        if (_hamt_dump_format(writer, "%zd::\n", i)) {
             goto error;
         }
 
diff --git a/Python/pyarena.c b/Python/pyarena.c
index abb5729..aefb787 100644
--- a/Python/pyarena.c
+++ b/Python/pyarena.c
@@ -160,7 +160,7 @@
 #if defined(Py_DEBUG)
     /*
     fprintf(stderr,
-        "alloc=%d size=%d blocks=%d block_size=%d big=%d objects=%d\n",
+        "alloc=%zu size=%zu blocks=%zu block_size=%zu big=%zu objects=%zu\n",
         arena->total_allocs, arena->total_size, arena->total_blocks,
         arena->total_block_size, arena->total_big_blocks,
         PyList_Size(arena->a_objects));