diff --git a/src/libvterm/src/pen.c b/src/libvterm/src/pen.c
index d3738b9..173f64f 100644
--- a/src/libvterm/src/pen.c
+++ b/src/libvterm/src/pen.c
@@ -47,7 +47,7 @@
   vterm_color_rgb(
       col,
       ansi_colors[idx].red, ansi_colors[idx].green, ansi_colors[idx].blue);
-  col->index = idx;
+  col->index = (uint8_t)idx;
   col->type = VTERM_COLOR_INDEXED;
 }
 
@@ -96,7 +96,7 @@
     if(argcount < 3)
       return argcount;
 
-    vterm_color_rgb(col, CSI_ARG(args[0]), CSI_ARG(args[1]), CSI_ARG(args[2]));
+    vterm_color_rgb(col, (uint8_t)CSI_ARG(args[0]), (uint8_t)CSI_ARG(args[1]), (uint8_t)CSI_ARG(args[2]));
 
     return 3;
 
diff --git a/src/terminal.c b/src/terminal.c
index 0a5ccbc..52f8105 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -4230,7 +4230,7 @@
 	return 1;
     }
     mch_memmove((char *)gap->ga_data + gap->ga_len, frag.str, frag.len);
-    gap->ga_len += frag.len;
+    gap->ga_len += (int)frag.len;
     if (!frag.final)
 	return 1;
 
diff --git a/src/version.c b/src/version.c
index f088e61..f939822 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    831,
+/**/
     830,
 /**/
     829,