diff --git a/requirements.txt b/requirements.txt
index 7942933..c7a690b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ aiodns==1.1.1
 asn1crypto==0.24.0        # via cryptography
 cffi==1.11.0              # via cryptography
 cryptography==2.1.4       # via pyopenssl
-deprecation==1.0.1        # via nicfit.py
+deprecation==2.0.5        # via nicfit.py
 idna==2.6                 # via cryptography
 lxml==4.1.1
 nicfit.py==0.6.6