diff --git a/github/resource_github_branch_protection.go b/github/resource_github_branch_protection.go
index 1fec983f9b..897ca957ed 100644
--- a/github/resource_github_branch_protection.go
+++ b/github/resource_github_branch_protection.go
@@ -62,7 +62,7 @@ func resourceGithubBranchProtection() *schema.Resource {
 							Type:         schema.TypeInt,
 							Optional:     true,
 							Default:      1,
-							ValidateFunc: validation.IntBetween(1, 6),
+							ValidateFunc: validation.IntBetween(0, 6),
 						},
 						PROTECTION_REQUIRES_CODE_OWNER_REVIEWS: {
 							Type:     schema.TypeBool,
diff --git a/github/resource_github_branch_protection_v3.go b/github/resource_github_branch_protection_v3.go
index 15bc42e407..82a62d3f15 100644
--- a/github/resource_github_branch_protection_v3.go
+++ b/github/resource_github_branch_protection_v3.go
@@ -101,7 +101,7 @@ func resourceGithubBranchProtectionV3() *schema.Resource {
 							Type:         schema.TypeInt,
 							Optional:     true,
 							Default:      1,
-							ValidateFunc: validation.IntBetween(1, 6),
+							ValidateFunc: validation.IntBetween(0, 6),
 						},
 					},
 				},
diff --git a/website/docs/r/branch_protection.html.markdown b/website/docs/r/branch_protection.html.markdown
index 1db1b1bd15..c998d83c95 100644
--- a/website/docs/r/branch_protection.html.markdown
+++ b/website/docs/r/branch_protection.html.markdown
@@ -98,7 +98,7 @@ The following arguments are supported:
 * `restrict_dismissals`: (Optional) Restrict pull request review dismissals.
 * `dismissal_restrictions`: (Optional) The list of actor IDs with dismissal access. If not empty, `restrict_dismissals` is ignored.
 * `require_code_owner_reviews`: (Optional) Require an approved review in pull requests including files with a designated code owner. Defaults to `false`.
-* `required_approving_review_count`: (Optional) Require x number of approvals to satisfy branch protection requirements. If this is specified it must be a number between 1-6. This requirement matches GitHub's API, see the upstream [documentation](https://developer.github.com/v3/repos/branches/#parameters-1) for more information.
+* `required_approving_review_count`: (Optional) Require x number of approvals to satisfy branch protection requirements. If this is specified it must be a number between 0-6. This requirement matches GitHub's API, see the upstream [documentation](https://developer.github.com/v3/repos/branches/#parameters-1) for more information.
 
 
 ## Import
diff --git a/website/docs/r/branch_protection_v3.html.markdown b/website/docs/r/branch_protection_v3.html.markdown
index d9418ac747..285e7df41b 100644
--- a/website/docs/r/branch_protection_v3.html.markdown
+++ b/website/docs/r/branch_protection_v3.html.markdown
@@ -98,7 +98,7 @@ The following arguments are supported:
 * `dismissal_teams`: (Optional) The list of team slugs with dismissal access.
   Always use `slug` of the team, **not** its name. Each team already **has** to have access to the repository.
 * `require_code_owner_reviews`: (Optional) Require an approved review in pull requests including files with a designated code owner. Defaults to `false`.
-* `required_approving_review_count`: (Optional) Require x number of approvals to satisfy branch protection requirements. If this is specified it must be a number between 1-6. This requirement matches GitHub's API, see the upstream [documentation](https://developer.github.com/v3/repos/branches/#parameters-1) for more information.
+* `required_approving_review_count`: (Optional) Require x number of approvals to satisfy branch protection requirements. If this is specified it must be a number between 0-6. This requirement matches GitHub's API, see the upstream [documentation](https://developer.github.com/v3/repos/branches/#parameters-1) for more information.
 
 ### Restrictions