Merge pull request #663 from libAtoms/issue662

update version bound on f90wrap

quippy/Makefile

@@ -86,7 +86,7 @@ F2PY_LINK_ARGS = $(shell ${PYTHON} -c 'import sys; print(" ".join([arg for arg i
 all: build
 
 f90wrap:
-	${PIP} install ${QUIPPY_INSTALL_OPTS} "f90wrap>=0.2.6,<0.2.14"
+	${PIP} install ${QUIPPY_INSTALL_OPTS} "f90wrap==0.2.13"
 
 clean:
 	rm -f _quippy${EXT_SUFFIX} ${F90WRAP_FILES} ${WRAP_FPP_FILES}