diff --git a/expat/examples/element_declarations.c b/expat/examples/element_declarations.c
index 7ce8544f..2ec7fbfd 100644
--- a/expat/examples/element_declarations.c
+++ b/expat/examples/element_declarations.c
@@ -127,15 +127,15 @@ dumpContentModelElement(const XML_Content *model, unsigned level,
   }
 
   // Node
-  printf("[%u] type=%s(%d), quant=%s(%d)", (unsigned)(model - root),
-         contentTypeName(model->type), model->type,
-         contentQuantName(model->quant), model->quant);
+  printf("[%u] type=%s(%u), quant=%s(%u)", (unsigned)(model - root),
+         contentTypeName(model->type), (unsigned int)model->type,
+         contentQuantName(model->quant), (unsigned int)model->quant);
   if (model->name) {
     printf(", name=\"%" XML_FMT_STR "\"", model->name);
   } else {
     printf(", name=NULL");
   }
-  printf(", numchildren=%d", model->numchildren);
+  printf(", numchildren=%u", model->numchildren);
   printf("\n");
 }
 
diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c
index d9285b21..c590ebf9 100644
--- a/expat/lib/xmlparse.c
+++ b/expat/lib/xmlparse.c
@@ -7856,7 +7856,7 @@ accountingReportDiff(XML_Parser rootParser,
   assert(! rootParser->m_parentParser);
 
   fprintf(stderr,
-          " (+" EXPAT_FMT_PTRDIFF_T("6") " bytes %s|%d, xmlparse.c:%d) %*s\"",
+          " (+" EXPAT_FMT_PTRDIFF_T("6") " bytes %s|%u, xmlparse.c:%d) %*s\"",
           bytesMore, (account == XML_ACCOUNT_DIRECT) ? "DIR" : "EXP",
           levelsAwayFromRootParser, source_line, 10, "");
 
@@ -7969,7 +7969,7 @@ entityTrackingReportStats(XML_Parser rootParser, ENTITY *entity,
 
   fprintf(
       stderr,
-      "expat: Entities(%p): Count %9d, depth %2d/%2d %*s%s%s; %s length %d (xmlparse.c:%d)\n",
+      "expat: Entities(%p): Count %9u, depth %2u/%2u %*s%s%s; %s length %d (xmlparse.c:%d)\n",
       (void *)rootParser, rootParser->m_entity_stats.countEverOpened,
       rootParser->m_entity_stats.currentDepth,
       rootParser->m_entity_stats.maximumDepthSeen,
diff --git a/expat/xmlwf/xmlfile.c b/expat/xmlwf/xmlfile.c
index 0598b86b..a9e6bcba 100644
--- a/expat/xmlwf/xmlfile.c
+++ b/expat/xmlwf/xmlfile.c
@@ -91,7 +91,8 @@ reportError(XML_Parser parser, const XML_Char *filename) {
              filename, XML_GetErrorLineNumber(parser),
              XML_GetErrorColumnNumber(parser), message);
   else
-    ftprintf(stderr, T("%s: (unknown message %d)\n"), filename, code);
+    ftprintf(stderr, T("%s: (unknown message %u)\n"), filename,
+             (unsigned int)code);
 }
 
 /* This implementation will give problems on files larger than INT_MAX. */