diff --git a/.circleci/config.yml b/.circleci/config.yml
index 95e63d81..649ce429 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -202,13 +202,13 @@ jobs:
 
 openssl_111: &openssl_111
   library: openssl
-  version: 1.1.1b
+  version: 1.1.1c
 openssl_110: &openssl_110
   library: openssl
-  version: 1.1.0j
+  version: 1.1.0k
 openssl_102: &openssl_102
   library: openssl
-  version: 1.0.2r
+  version: 1.0.2s
 openssl_101: &openssl_101
   library: openssl
   version: 1.0.1u
diff --git a/appveyor.yml b/appveyor.yml
index e3062330..e050d00c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,13 +4,13 @@ environment:
     # 1.1.1, 64 bit
     - TARGET: x86_64-pc-windows-msvc
       BITS: 64
-      OPENSSL_VERSION: 1_1_1b
+      OPENSSL_VERSION: 1_1_1c
       OPENSSL_DIR: C:\OpenSSL
 
     # 1.0.2, 32 bit
     - TARGET: i686-pc-windows-msvc
       BITS: 32
-      OPENSSL_VERSION: 1_0_2r
+      OPENSSL_VERSION: 1_0_2s
       OPENSSL_DIR: C:\OpenSSL
 
     # mingw
diff --git a/openssl-sys/build/cfgs.rs b/openssl-sys/build/cfgs.rs
index c74c2bb0..4dd919b1 100644
--- a/openssl-sys/build/cfgs.rs
+++ b/openssl-sys/build/cfgs.rs
@@ -58,6 +58,9 @@ pub fn get(openssl_version: Option<u64>, libressl_version: Option<u64>) -> Vec<&
         if openssl_version >= 0x1_01_01_02_0 {
             cfgs.push("ossl111b");
         }
+        if openssl_version >= 0x1_01_01_03_0 {
+            cfgs.push("ossl111c");
+        }
     }
 
     cfgs
diff --git a/openssl-sys/src/ssl.rs b/openssl-sys/src/ssl.rs
index 257d380b..0cad5aac 100644
--- a/openssl-sys/src/ssl.rs
+++ b/openssl-sys/src/ssl.rs
@@ -1314,7 +1314,11 @@ extern "C" {
 }
 
 cfg_if! {
-    if #[cfg(ossl110)] {
+    if #[cfg(ossl111c)] {
+        extern "C" {
+            pub fn SSL_session_reused(ssl: *const SSL) -> c_int;
+        }
+    } else if #[cfg(ossl110)] {
         extern "C" {
             pub fn SSL_session_reused(ssl: *mut SSL) -> c_int;
         }