diff --git a/src/project.conf b/src/project.conf
index f2303e7..5520493 100644
--- a/src/project.conf
+++ b/src/project.conf
@@ -2,7 +2,7 @@ subdirs=common
 targets=download,surfer
 #cppflags=-D EMBEDDED
 cflags=-W -Wall -g -O2 -pedantic -fPIE -D_FORTIFY_SOURCE=2 -fstack-protector-all
-ldflags=-Wl,-pie
+ldflags=-Wl,-pie -Wl,-z,relro -Wl,-z,now
 dist=Makefile,callbacks.h,common.h,download.h,ghtml.h,surfer.h,ghtml-gtkhtml.c,ghtml-gtkmozembed.c,ghtml-gtktextview.c,ghtml-webkit.c
 
 [download]
diff --git a/tools/project.conf b/tools/project.conf
index bdb4378..7f94c16 100644
--- a/tools/project.conf
+++ b/tools/project.conf
@@ -4,7 +4,7 @@ cppflags_force=-I ../src
 cflags_force=`pkg-config --cflags libDesktop`
 cflags=-W -Wall -g -O2 -pedantic -fPIE -D_FORTIFY_SOURCE=2 -fstack-protector-all
 ldflags_force=`pkg-config --libs libDesktop`
-ldflags=-Wl,-pie
+ldflags=-Wl,-pie -Wl,-z,relro -Wl,-z,now
 dist=Makefile,backend/contents.c,backend/gtkdoc.c,backend/manual.c,backend/search.c,helper.h
 
 [bookmark]