diff --git a/src/monst.c b/src/monst.c
index 8952b973a..9ca1088d8 100644
--- a/src/monst.c
+++ b/src/monst.c
@@ -2330,13 +2330,13 @@ NEARDATA struct permonst mons[] = {
         M2_HOSTILE | M2_STRONG,
         0, 0, MH_SPIDER, 10, CLR_BLUE),
     MON("monstrous spider", S_SPIDER,                         /* SpliceHack */
-        LVL(8, 15, 4, 0, 0), (G_GENO | 1),
+        LVL(10, 15, 4, 0, 0), (G_GENO | 1),
         A(ATTK(AT_BITE, AD_DRST, 4, 6),
           ATTK(AT_SCRE, AD_FEAR, 2, 4), 
           NO_ATTK, NO_ATTK, NO_ATTK, NO_ATTK),
         SIZ(1500, 300, MS_SILENT, MZ_HUGE), MR_POISON, MR_POISON,
         M1_ANIMAL | M1_NOHANDS | M1_OVIPAROUS | M1_POIS | M1_CARNIVORE,
-        M2_HOSTILE | M2_STRONG, 0, 0, MH_SPIDER, 10, CLR_ORANGE),
+        M2_HOSTILE | M2_STRONG, 0, 0, MH_SPIDER, 15, CLR_ORANGE),
     MON("werespider", S_SPIDER,                                 /* Slash'EM */
         LVL(11, 15, 3, 0, 0), (G_GENO | G_NOGEN | 1),
         A(ATTK(AT_BITE, AD_WERE, 4, 4),