diff --git a/ueforth/Makefile b/ueforth/Makefile
index 688339d..215288e 100644
--- a/ueforth/Makefile
+++ b/ueforth/Makefile
@@ -1,4 +1,4 @@
-VERSION=7.0.4
+VERSION=7.0.5
 REVISION=$(shell git rev-parse HEAD)
 
 OUT = out
diff --git a/ueforth/esp32/template.ino b/ueforth/esp32/template.ino
index 1a4d546..3c5f400 100644
--- a/ueforth/esp32/template.ino
+++ b/ueforth/esp32/template.ino
@@ -54,7 +54,7 @@
 # define HEAP_SIZE 2 * 1024
 # define STACK_SIZE 32
 #endif
-#define INTERRUPT_STACK_CELLS 16
+#define INTERRUPT_STACK_CELLS 64
 
 #define PLATFORM_OPCODE_LIST \
   /* Memory Allocation */ \