diff --git a/acprep b/acprep
index c3c6beb2..ec8930ea 100755
--- a/acprep
+++ b/acprep
@@ -8,8 +8,8 @@
 # This script simply sets up the compiler and linker flags for all the various
 # build permutations I use for testing and profiling.
 
-export AUTOCONF_VERSION=2.62
-export AUTOMAKE_VERSION=1.10.1
+export AUTOCONF_VERSION=2.61
+export AUTOMAKE_VERSION=1.10
 
 cmd=$(which glibtoolize 2>&1)
 if [ -x "$cmd" ]; then