diff --git a/issues_change_detector b/issues_change_detector
index 04a6c9b..c54ce6a 100755
--- a/issues_change_detector
+++ b/issues_change_detector
@@ -1,6 +1,6 @@
 #! /bin/bash
 
-if ! which inotifywait &> /dev/null
+if [[ ! -x /usr/bin/inotifywait ]]
 then
     echo 'inotify is a dep. fail'
     exit
diff --git a/lib/main.sh b/lib/main.sh
index 183ce8f..50040d6 100644
--- a/lib/main.sh
+++ b/lib/main.sh
@@ -123,21 +123,21 @@ envbot_quit() {
 }
 
 # Check for moreutils else we're doomed.
-if ! which sponge
+if [[ ! -x /usr/bin/sponge ]]
 then
     echo "moreutils is a dep, please install."
     envbot_quit 1
 fi
 
-# Check for w3m because we use it to convert html entities.
-if ! which w3m
+# Check for links because we use it to convert html entities.
+if [[ ! -x /usr/bin/links ]]
 then
-    echo "w3m is a dep, please install."
+    echo "links is a dep, please install."
     envbot_quit 1
 fi
 
 # Check for recode
-if ! which recode
+if [[ ! -x /usr/bin/recode ]]
 then
     echo "recode is a dep, please install."
     envbot_quit 1