diff --git a/bfinject b/bfinject
index 481ac74..3ba778b 100755
--- a/bfinject
+++ b/bfinject
@@ -160,8 +160,8 @@ for DYLIB in ${DYLIBS[@]}; do
     fi
     
     # Use random filenames to avoid cached binaries causing "Killed: 9" messages.
-    RAND=`dd if=/dev/random bs=1 count=16 2>/dev/null | md5`
-    RANDOM_NAME="${INJECTOR%/*}/`dd if=/dev/random bs=1 count=16 2>/dev/null | md5`"
+    RAND=`dd if=/dev/random bs=1 count=16 2>/dev/null | sha1sum`
+    RANDOM_NAME="${INJECTOR%/*}/`dd if=/dev/random bs=1 count=16 2>/dev/null | sha1sum`"
     DYLIB_DIR="/System/Library/Frameworks/${RAND}.framework"
     DYLIB_PATH="$DYLIB_DIR/$RAND.dylib"