diff --git a/draw.c b/draw.c
index 23cb39f..055b89d 100644
--- a/draw.c
+++ b/draw.c
@@ -97,11 +97,11 @@ static int dopcxreal(char *name,gfxset *gs) {
 
 	memset(gs,0,sizeof(gfxset));
 	ileft=0;
-	sprintf(tname,DATADIR "/%s",name);
+	snprintf(tname,sizeof(tname),DATADIR "/%s",name);
 	ihand=open(tname,O_RDONLY);
 	if(ihand<0) {
 		char tname2[260];
-		sprintf(tname2,"%s.pcx",tname);
+		snprintf(tname2,sizeof(tname2),"%s.pcx",tname);
 		ihand=open(tname2,O_RDONLY);
 		if(ihand<0)
 			return 1;
@@ -258,7 +258,7 @@ static void bigscrprintf(char *str,...) {
 	va_list ap;
 
 	va_start(ap, str);
-	vsprintf(output,str,ap);
+	vsnprintf(output,sizeof(output),str,ap);
 	p=output;
 	for(;;) {
 		p2=p;
@@ -407,7 +407,7 @@ void loadgfx() {
 	colorgs=gs+1;
 
 	for(i=0;i<MAXSETS;++i) {
-		sprintf(name,"%s%d",colorsetname,i);
+		snprintf(name,sizeof(name),"%s%d",colorsetname,i);
 		err=dopcx(name,colorgs+i);
 		if(err) continue;
 	}
diff --git a/menu.c b/menu.c
index 4d70bba..b6b2ed5 100644
--- a/menu.c
+++ b/menu.c
@@ -230,7 +230,7 @@ static void draw_host_game(void) {
 	for(i=0;i<MAXNETNODES;++i) {
 		if(!netnodes[i].used) continue;
 		name=netnodes[i].name;
-		sprintf(temp,"  %d     %s",i+1,name);
+		snprintf(temp,sizeof(temp),"  %d     %s",i+1,name);
 		drawbigstring(M3X,M3Y+(i+2)*bigfontyspace,temp);
 	}
 
@@ -288,7 +288,7 @@ static void drawjoinscreen(void) {
 		if(!netnodes[i].used) continue;
 		memmove(name,netnodes[i].name,16);
 		name[16]=0;
-		sprintf(temp,"  %d     %s",i+1,name);
+		snprintf(temp,sizeof(temp),"  %d     %s",i+1,name);
 		drawbigstring(JX,JY+(i+1)*bigfontyspace,temp);
 	}
 }