diff --git a/shard.yml b/shard.yml
index 940c8aa..51a8063 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,5 @@
 name: jwt
-version: 1.1.2
+version: 1.2.0
 
 authors:
   - Potapov Sergey <blake131313@gmail.com>
@@ -7,5 +7,6 @@ authors:
 dependencies:
   openssl_ext:
     github: stakach/openssl_ext
+    version: ~> 1.1
 
 license: MIT
diff --git a/spec/integration/algorithms/rsa_spec.cr b/spec/integration/algorithms/rsa_spec.cr
index 84fc800..88fcebf 100644
--- a/spec/integration/algorithms/rsa_spec.cr
+++ b/spec/integration/algorithms/rsa_spec.cr
@@ -25,7 +25,7 @@ describe JWT do
                "FLscCAkdAP9lDgeDGwIDAQAB\n" +
                "-----END PUBLIC KEY-----\n"
 
-  wrong_key = OpenSSL::RSA.new(1024).to_pem
+  wrong_key = OpenSSL::PKey::RSA.new(1024).to_pem
   payload = {"foo" => "bar"}
 
   algorithms = {
diff --git a/src/jwt.cr b/src/jwt.cr
index ff4e49a..5b26f2c 100644
--- a/src/jwt.cr
+++ b/src/jwt.cr
@@ -38,7 +38,7 @@ module JWT
       # public key verification for RSA and ECDSA algorithms
       case algorithm
       when Algorithm::RS256, Algorithm::RS384, Algorithm::RS512
-        rsa = OpenSSL::RSA.new(key)
+        rsa = OpenSSL::PKey::RSA.new(key)
         digest = OpenSSL::Digest.new("sha#{algorithm.to_s[2..-1]}")
         if !rsa.verify(digest, Base64.decode_string(encoded_signature), verify_data)
           raise VerificationError.new("Signature verification failed")
@@ -99,11 +99,11 @@ module JWT
     when Algorithm::HS512
       OpenSSL::HMAC.digest(:sha512, key, data)
     when Algorithm::RS256
-      OpenSSL::RSA.new(key).sign(OpenSSL::Digest.new("sha256"), data)
+      OpenSSL::PKey::RSA.new(key).sign(OpenSSL::Digest.new("sha256"), data)
     when Algorithm::RS384
-      OpenSSL::RSA.new(key).sign(OpenSSL::Digest.new("sha384"), data)
+      OpenSSL::PKey::RSA.new(key).sign(OpenSSL::Digest.new("sha384"), data)
     when Algorithm::RS512
-      OpenSSL::RSA.new(key).sign(OpenSSL::Digest.new("sha512"), data)
+      OpenSSL::PKey::RSA.new(key).sign(OpenSSL::Digest.new("sha512"), data)
     else raise(UnsupportedAlgorithmError.new("Unsupported algorithm: #{algorithm}"))
     end
   end