diff --git a/R/clustering.R b/R/clustering.R
index 775a3233c..feec0c69f 100644
--- a/R/clustering.R
+++ b/R/clustering.R
@@ -207,7 +207,7 @@ FindClusters.Seurat <- function(
 FindNeighbors.default <- function(
   object,
   distance.matrix = FALSE,
-  k.param = 10,
+  k.param = 20,
   compute.SNN = TRUE,
   prune.SNN = 1/15,
   nn.eps = 0,
@@ -286,7 +286,7 @@ FindNeighbors.default <- function(
 FindNeighbors.Assay <- function(
   object,
   features = NULL,
-  k.param = 10,
+  k.param = 20,
   compute.SNN = TRUE,
   prune.SNN = 1/15,
   nn.eps = 0,
@@ -314,7 +314,7 @@ FindNeighbors.Assay <- function(
 #'
 FindNeighbors.dist <- function(
   object,
-  k.param = 10,
+  k.param = 20,
   compute.SNN = TRUE,
   prune.SNN = 1/15,
   nn.eps = 0,
@@ -355,7 +355,7 @@ FindNeighbors.Seurat <- function(
   dims = 1:10,
   assay = NULL,
   features = NULL,
-  k.param = 30,
+  k.param = 20,
   compute.SNN = TRUE,
   prune.SNN = 1/15,
   nn.eps = 0,
diff --git a/appveyor.yml b/appveyor.yml
index c6933d2ff..9c400d215 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -17,6 +17,7 @@ environment:
   global:
     R_ARCH: x64
     USE_RTOOLS: true
+    BIOC_USE_DEVEL: "FALSE"
     _R_CHECK_FORCE_SUGGESTS_: false
     PYTHON: "C:\\Python36-x64"
     RETICULATE_PYTHON: "C:\\Python36-x64"
diff --git a/man/FindNeighbors.Rd b/man/FindNeighbors.Rd
index cc0c5145a..968f018b3 100644
--- a/man/FindNeighbors.Rd
+++ b/man/FindNeighbors.Rd
@@ -11,19 +11,19 @@
 FindNeighbors(object, ...)
 
 \method{FindNeighbors}{default}(object, distance.matrix = FALSE,
-  k.param = 10, compute.SNN = TRUE, prune.SNN = 1/15, nn.eps = 0,
+  k.param = 20, compute.SNN = TRUE, prune.SNN = 1/15, nn.eps = 0,
   verbose = TRUE, force.recalc = FALSE, ...)
 
-\method{FindNeighbors}{Assay}(object, features = NULL, k.param = 10,
+\method{FindNeighbors}{Assay}(object, features = NULL, k.param = 20,
   compute.SNN = TRUE, prune.SNN = 1/15, nn.eps = 0, verbose = TRUE,
   force.recalc = FALSE, ...)
 
-\method{FindNeighbors}{dist}(object, k.param = 10, compute.SNN = TRUE,
+\method{FindNeighbors}{dist}(object, k.param = 20, compute.SNN = TRUE,
   prune.SNN = 1/15, nn.eps = 0, verbose = TRUE,
   force.recalc = FALSE, ...)
 
 \method{FindNeighbors}{Seurat}(object, reduction = "pca", dims = 1:10,
-  assay = NULL, features = NULL, k.param = 30, compute.SNN = TRUE,
+  assay = NULL, features = NULL, k.param = 20, compute.SNN = TRUE,
   prune.SNN = 1/15, nn.eps = 0, verbose = TRUE,
   force.recalc = FALSE, do.plot = FALSE, graph.name = NULL, ...)
 }