diff --git a/antlr.changes b/antlr.changes
index c617f74..0d463f7 100644
--- a/antlr.changes
+++ b/antlr.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Sep 29 13:23:59 UTC 2017 - fstrba@suse.com
+
+- Require java-devel >= 1.6 to build, because of the source and
+  target level
+
 -------------------------------------------------------------------
 Wed Sep  6 18:02:30 UTC 2017 - fstrba@suse.com
 
diff --git a/antlr.spec b/antlr.spec
index b0105c6..fdce80e 100644
--- a/antlr.spec
+++ b/antlr.spec
@@ -34,6 +34,7 @@ Patch2:         fix-docpath.diff
 BuildRequires:  ant
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
+BuildRequires:  java-devel >= 1.6
 BuildRequires:  javapackages-tools
 BuildRequires:  python
 BuildRequires:  xml-commons-apis
@@ -51,7 +52,7 @@ or Java actions (you can use PCCTS 1.xx to generate C-based parsers).
 %package        java
 Summary:        ANother Tool for Language Recognition (Manual)
 Group:          Development/Tools/Other
-Requires:       java >= 1.6.0
+Requires:       java >= 1.6
 BuildArch:      noarch
 
 %description    java