diff --git a/conf/auth-header.src b/conf/auth-header.src
index 1ba8136..76b3bae 100644
--- a/conf/auth-header.src
+++ b/conf/auth-header.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://downloads.apache.org/guacamole/1.4.0/binary/guacamole-auth-header-1.4.0.tar.gz
-SOURCE_SUM=3f5491737b3295056949d235120dca60ee9518c951b09271780dddf15166a9de
+SOURCE_URL=https://downloads.apache.org/guacamole/1.5.1/binary/guacamole-auth-header-1.5.1.tar.gz
+SOURCE_SUM=aea94a4d59370026edd0fb8d0bd8cd1090176eb2d10218dd27ede134a0647590
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true