diff --git a/.gitignore b/.gitignore
index 7aa2143..e7eeeec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /cfssl-1.3.4.tar.gz
 /cfssl-1.4.1.tar.gz
 /cfssl-1.5.0.tar.gz
+/cfssl-1.6.0.tar.gz
diff --git a/golang-github-cloudflare-cfssl.spec b/golang-github-cloudflare-cfssl.spec
index 119ec97..6d1fdc3 100644
--- a/golang-github-cloudflare-cfssl.spec
+++ b/golang-github-cloudflare-cfssl.spec
@@ -3,7 +3,7 @@
 
 # https://github.com/cloudflare/cfssl
 %global goipath         github.com/cloudflare/cfssl
-Version:                1.5.0
+Version:                1.6.0
 
 %gometa
 
@@ -27,7 +27,6 @@ URL:            %{gourl}
 Source0:        %{gosource}
 
 BuildRequires:  golang(github.com/cloudflare/backoff)
-BuildRequires:  golang(github.com/cloudflare/go-metrics)
 BuildRequires:  golang(github.com/cloudflare/redoctober/client)
 BuildRequires:  golang(github.com/cloudflare/redoctober/core)
 BuildRequires:  golang(github.com/GeertJohan/go.rice)
@@ -44,9 +43,12 @@ BuildRequires:  golang(github.com/kisielk/sqlstruct)
 BuildRequires:  golang(github.com/kisom/goutils/assert)
 BuildRequires:  golang(github.com/lib/pq)
 BuildRequires:  golang(github.com/mattn/go-sqlite3)
+BuildRequires:  golang(github.com/prometheus/client_golang/prometheus)
+BuildRequires:  golang(github.com/prometheus/client_golang/prometheus/promauto)
+BuildRequires:  golang(github.com/prometheus/client_golang/prometheus/promhttp)
 BuildRequires:  golang(github.com/zmap/zcrypto/x509)
-BuildRequires:  golang(github.com/zmap/zlint/v2)
-BuildRequires:  golang(github.com/zmap/zlint/v2/lint)
+BuildRequires:  golang(github.com/zmap/zlint/v3)
+BuildRequires:  golang(github.com/zmap/zlint/v3/lint)
 BuildRequires:  golang(golang.org/x/crypto/ed25519)
 BuildRequires:  golang(golang.org/x/crypto/ocsp)
 BuildRequires:  golang(golang.org/x/crypto/pkcs12)
@@ -80,6 +82,7 @@ install -m 0755 -vp %{gobuilddir}/bin/* %{buildroot}%{_bindir}/
 %if %{with check}
 %check
 # api/bundle, bundler, revoke: needs network
+# signer/remote: https://github.com/cloudflare/cfssl/issues/1200
 %gocheck -d api/bundle \
          -d bundler \
          -d certdb/ocspstapling \
@@ -87,7 +90,8 @@ install -m 0755 -vp %{gobuilddir}/bin/* %{buildroot}%{_bindir}/
          -d revoke \
          -d scan/crypto/tls \
          -d signer/local \
-         -d api/generator
+         -d api/generator \
+         -d signer/remote
 %endif
 
 %files
diff --git a/sources b/sources
index 6f11230..2071cf6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (cfssl-1.5.0.tar.gz) = ab93f0d99be4ebbdbdfe6011d87ee3a87f8aca90752f8e8638de502eb2f8290a7ed3cbf69e43c78afb9244c1dfff487626bd5058c453263dee95e14621ca849f
+SHA512 (cfssl-1.6.0.tar.gz) = a1470c50a6ffa506d2c1798a9e8af5a60206cd41d24cc3ca8a071e9ddfc3249a07fa79c03dabc3df0800985be7e930018045ae95ee83d31486cba93e516da111