diff --git a/hecl b/hecl
index 9b3bac4b5..58ade41fd 160000
--- a/hecl
+++ b/hecl
@@ -1 +1 @@
-Subproject commit 9b3bac4b58477d7da8c77ed65233b0c1b44515ae
+Subproject commit 58ade41fd29dab8b10bd7703c5084ba63275c9ed
diff --git a/mpcksum/main.cpp b/mpcksum/main.cpp
index 9f5f607a1..8118ea8cf 100644
--- a/mpcksum/main.cpp
+++ b/mpcksum/main.cpp
@@ -41,7 +41,7 @@ int main(int argc, char* argv[])
 
     atUint8* data = in.data();
 
-    atUint32 newCkSum = athena::Checksums::crc32(data + 68, 8188, 0);
+    atUint32 newCkSum = athena::Checksums::crc32(data + 68, 8188, ~0, 0);
     *(atUint32*)(data + 64) = SBIG(newCkSum);
     out->writeBytes(data, 8256);
 
diff --git a/specter b/specter
index 5c6e64c53..f1d71e3e8 160000
--- a/specter
+++ b/specter
@@ -1 +1 @@
-Subproject commit 5c6e64c53f831b405e23dc2a105a16259dc5a076
+Subproject commit f1d71e3e86f241ebd959b0a4e07f77913b34be63