diff --git a/klee.changes b/klee.changes
index 6e83378..51b5504 100644
--- a/klee.changes
+++ b/klee.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Mon Jan 15 07:49:05 UTC 2018 - jslaby@suse.com
+
+- change "env python" to "python3" in tests, so that we can build and
+  depend on py3 only
+
+-------------------------------------------------------------------
+Mon Jan  8 07:18:25 UTC 2018 - jslaby@suse.com
+
+- add python3-setuptools BuildRequires, so that we have pkg_resources
+  for tests
+
 -------------------------------------------------------------------
 Fri Nov 17 17:01:38 UTC 2017 - jslaby@suse.com
 
diff --git a/klee.spec b/klee.spec
index a6719e6..e5621e7 100644
--- a/klee.spec
+++ b/klee.spec
@@ -75,6 +75,7 @@ BuildRequires:  lit
 BuildRequires:  llvm%{llvm_version}-devel
 BuildRequires:  ninja
 BuildRequires:  python3-base
+BuildRequires:  python3-setuptools
 BuildRequires:  stp-devel
 BuildRequires:  xz
 BuildRequires:  zlib-devel
@@ -112,6 +113,10 @@ mkdir -p build/test/
 cp %{SOURCE2} build/test/
 cp %{SOURCE3} build/test/
 
+sed -i '1s@env python@python3@' test/Concrete/ConcreteTest.py \
+	tools/klee-stats/klee-stats \
+	tools/ktest-tool/ktest-tool
+
 %build
 %define __builder ninja
 # they use -DNDEBUG, but we cannot, hence setting CMAKE_C*_FLAGS