diff --git a/configure.ac b/configure.ac
index 869226c1..9fb78d2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -273,7 +273,7 @@ ACX_PROG_VERSION_REQ_STRICT([BASH_SHELL],
     [GNU bash >= 3.1],
     [bash],
     [bash],
-    ['^GNU bash, version (3\.[1-9]|4)'])
+    ['^GNU bash, version (3\.[1-9]|4|5)'])
 
 # We need a awk that *is* GNU awk
 ACX_PROG_VERSION_REQ_STRICT([AWK],