diff --git a/recipes/ntsynt/meta.yaml b/recipes/ntsynt/meta.yaml
index 0fa8488dc1a91..2ae5caf0befcf 100644
--- a/recipes/ntsynt/meta.yaml
+++ b/recipes/ntsynt/meta.yaml
@@ -10,7 +10,7 @@ source:
   sha256: db3fe491233d93967120d091a19abbef1fa5dfa637814bb617814a1b3e3f1331
 
 build:
-  number: 0
+  number: 1
   run_exports: 
     - {{ pin_subpackage("ntsynt", max_pin="x") }}
 
@@ -24,10 +24,10 @@ requirements:
     - ninja
     - llvm-openmp  # [osx]
     - libgomp      # [linux]
-    - btllib
+    - btllib <1.7.0
   run:
     - python
-    - btllib
+    - btllib <1.7.0
     - intervaltree
     - pybedtools
     - ncls