Index: web/Makefile
--- web/Makefile.orig
+++ web/Makefile
@@ -126,7 +126,7 @@ package: package_dir_structure package_web
 	cp $(ROOT)/LICENSE.TXT $(CC_BUILD_DIR)
 
 package_api:
-	${PYTHON_BIN} -m pip install --no-deps -t ${CC_BUILD_LIB_DIR} \
+	${PYTHON_BIN} -m pip install --no-index --no-cache --no-deps -t ${CC_BUILD_LIB_DIR} \
 		api/py/codechecker_api/dist/codechecker_api.tar.gz \
 		api/py/codechecker_api_shared/dist/codechecker_api_shared.tar.gz