diff --git a/extern/recastnavigation/.id b/extern/recastnavigation/.id
index f15ce513c2..81e564671a 100644
--- a/extern/recastnavigation/.id
+++ b/extern/recastnavigation/.id
@@ -1 +1 @@
-c40188c796f089f89a42e0b939d934178dbcfc5c
+57610fa6ef31b39020231906f8c5d40eaa8294ae
diff --git a/extern/recastnavigation/Recast/Source/RecastContour.cpp b/extern/recastnavigation/Recast/Source/RecastContour.cpp
index 277ab01501..6574c11b6b 100644
--- a/extern/recastnavigation/Recast/Source/RecastContour.cpp
+++ b/extern/recastnavigation/Recast/Source/RecastContour.cpp
@@ -1009,7 +1009,7 @@ bool rcBuildContours(rcContext* ctx, rcCompactHeightfield& chf,
 	if (cset.nconts > 0)
 	{
 		// Calculate winding of all polygons.
-		rcScopedDelete<char> winding((char*)rcAlloc(sizeof(char)*cset.nconts, RC_ALLOC_TEMP));
+		rcScopedDelete<signed char> winding((signed char*)rcAlloc(sizeof(signed char)*cset.nconts, RC_ALLOC_TEMP));
 		if (!winding)
 		{
 			ctx->log(RC_LOG_ERROR, "rcBuildContours: Out of memory 'hole' (%d).", cset.nconts);