diff --git a/acprep b/acprep
index 26f8d8b2..b83d1f19 100755
--- a/acprep
+++ b/acprep
@@ -99,7 +99,7 @@ class CommandLineApp(object):
 
     force_exit    = True           # If true, always ends run() with sys.exit()
     log_handler   = None
-    boost_major   = "1_50"
+    boost_major   = "1_52"
 
     options = {
         'debug':    False,
diff --git a/lib/Makefile b/lib/Makefile
index 68755f18..ddbe0585 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -6,7 +6,7 @@ STOW_ROOT	= /usr/local/Cellar/boost
 PRODUCTS	= $(HOME)/Products
 
 GCC_VERSION	= 4.7
-BOOST_VERSION	= 1_50_0
+BOOST_VERSION	= 1_52_0
 
 CC		= gcc-mp-$(GCC_VERSION)
 ifeq ($(CC),clang)