diff --git a/lib/node_modules/@stdlib/math/base/special/riemann-zeta/include/stdlib/math/base/special/riemann_zeta.h b/lib/node_modules/@stdlib/math/base/special/riemann-zeta/include/stdlib/math/base/special/riemann_zeta.h
index eace1348953a..008b698f43b8 100644
--- a/lib/node_modules/@stdlib/math/base/special/riemann-zeta/include/stdlib/math/base/special/riemann_zeta.h
+++ b/lib/node_modules/@stdlib/math/base/special/riemann-zeta/include/stdlib/math/base/special/riemann_zeta.h
@@ -29,7 +29,7 @@ extern "C" {
 /**
 * Evaluates the Riemann zeta function.
 */
-double stdlib_base_zeta( const double x );
+double stdlib_base_zeta( const double s );
 
 #ifdef __cplusplus
 }
diff --git a/lib/node_modules/@stdlib/math/base/special/riemann-zeta/lib/main.js b/lib/node_modules/@stdlib/math/base/special/riemann-zeta/lib/main.js
index bbdd264fa6af..873d63738ba6 100644
--- a/lib/node_modules/@stdlib/math/base/special/riemann-zeta/lib/main.js
+++ b/lib/node_modules/@stdlib/math/base/special/riemann-zeta/lib/main.js
@@ -49,6 +49,7 @@ var TWO_PI = require( '@stdlib/constants/float64/two-pi' );
 var SQRT_EPSILON = require( '@stdlib/constants/float64/sqrt-eps' );
 var LN_SQRT_TWO_PI = require( '@stdlib/constants/float64/ln-sqrt-two-pi' );
 var MAX_SAFE_NTH_FACTORIAL = require( '@stdlib/constants/float64/max-safe-nth-factorial' );
+var FLOAT64_MAX_LN = require( '@stdlib/constants/float64/max-ln' );
 var ODD_POSITIVE_INTEGERS = require( './odd_positive_integers.json' );
 var EVEN_NONNEGATIVE_INTEGERS = require( './even_nonnegative_integers.json' );
 var BERNOULLI = require( './bernoulli.json' );
@@ -63,7 +64,7 @@ var rateval6 = require( './rational_p6q6.js' );
 // VARIABLES //
 
 var MAX_BERNOULLI_2N = 129;
-var MAX_LN = 709; // TODO: consider making external constant
+var MAX_LN = floor( FLOAT64_MAX_LN );
 var Y1 = 1.2433929443359375;
 var Y3 = 0.6986598968505859375;