diff --git a/versions.json b/versions.json
index d2b17ce..404eef6 100644
--- a/versions.json
+++ b/versions.json
@@ -1,5 +1,5 @@
 {
     "aws": "REPLACE ME",
-    "apbs": "3.4.0",
+    "apbs": "3.4.1",
     "pdb2pqr": "3.5.2"
 }