diff --git a/debian/changelog b/debian/changelog
index d61f435f..6ad4111f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -2,6 +2,9 @@ llvm-toolchain-4.0 (1:4.0.1~+rc3-2) unstable; urgency=medium
 
   * Add libomp-dev to the suggests of clang
   * Add the ld.lld manpage
+  * Add Provides on python-lldb-x.y & python-clang-x.y & libllvm-x.y-ocaml-dev
+    to avoid the recurring problem about conflicts
+    (Closes: #835546, #863739, #863742)
 
  -- Sylvestre Ledru <sylvestre@debian.org>  Wed, 14 Jun 2017 19:06:20 +0200
 
diff --git a/debian/control b/debian/control
index 4ba21da1..fedf7402 100644
--- a/debian/control
+++ b/debian/control
@@ -190,8 +190,10 @@ Package: python-clang-4.0
 Section: python
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}, python
-Replaces: python-clang-3.3, python-clang-3.4, python-clang-3.5, python-clang-3.6, python-clang-3.7, python-clang-3.8, python-clang-3.9
+Replaces: python-clang-3.3, python-clang-3.4, python-clang-3.5, python-clang-3.6, python-clang-3.7, python-clang-3.8, python-clang-3.9, python-clang-x.y
 Breaks: python-clang-3.3, python-clang-3.4, python-clang-3.5, python-clang-3.6, python-clang-3.7, python-clang-3.8, python-clang-3.9
+Conflicts: python-clang-x.y
+Provides: python-clang-x.y
 Description: Clang Python Bindings
  Clang project is a C, C++, Objective C and Objective C++ front-end
  for the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler
@@ -342,7 +344,9 @@ Section: ocaml
 Architecture: amd64 arm64 armel armhf i386
 Suggests: llvm-4.0-doc
 Depends: ${shlibs:Depends}, ${misc:Depends}, ${ocaml:Depends}, llvm-4.0-dev (= ${binary:Version})
-Provides: ${ocaml:Provides}
+Replaces: libllvm-x.y-ocaml-dev
+Conflicts: libllvm-x.y-ocaml-dev
+Provides: ${ocaml:Provides}, libllvm-x.y-ocaml-dev
 Description: Modular compiler and toolchain technologies, OCaml bindings
  LLVM is a collection of libraries and tools that make it easy to build
  compilers, optimizers, just-in-time code generators, and many other
@@ -501,7 +505,9 @@ Section: python
 Architecture: amd64 armel armhf i386  kfreebsd-amd64 kfreebsd-i386 s390 sparc hppa m68k powerpcspe sh4 x32 mips mipsel arm64
 # ia64 mips mipsel hurd ppc64 ppc64el alpha s390x powerpc sparc64 have been removed
 Depends: ${shlibs:Depends}, ${misc:Depends}, liblldb-4.0-dev, python, python-six
-Conflicts: python-lldb-3.4, python-lldb-3.5, python-lldb-3.6, python-lldb-3.7, python-lldb-3.8, python-lldb-3.9
+Conflicts: python-lldb-3.4, python-lldb-3.5, python-lldb-3.6, python-lldb-3.7, python-lldb-3.8, python-lldb-3.9, python-lldb-x.y
+Replaces: python-lldb-x.y
+Provides: python-lldb-x.y
 Pre-Depends: ${misc:Pre-Depends}
 Description: Next generation, high-performance debugger, python lib
  LLDB is a next generation, high-performance debugger. It is built as a set of