diff --git a/Cargo.lock b/Cargo.lock
index c29370fded..03f5be16be 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -674,16 +674,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "jemalloc-ctl"
-version = "0.2.0"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "jemalloc-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jemalloc-sys 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
+ "paste 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "jemalloc-sys"
-version = "0.1.8"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -693,10 +694,10 @@ dependencies = [
 
 [[package]]
 name = "jemallocator"
-version = "0.1.9"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "jemalloc-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jemalloc-sys 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.60 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -988,6 +989,26 @@ dependencies = [
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "paste"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "paste-impl 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro-hack 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "paste-impl"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro-hack 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.39 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "1.0.1"
@@ -1046,6 +1067,16 @@ name = "ppv-lite86"
 version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.39 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "0.4.30"
@@ -1256,8 +1287,8 @@ dependencies = [
  "backtrace 0.3.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "cpuprofiler 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jemalloc-ctl 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "jemallocator 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jemalloc-ctl 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jemallocator 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "once_cell 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2168,9 +2199,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dbe6e417e7d0975db6512b90796e8ce223145ac4e33c377e4a42882a0e88bb08"
 "checksum itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5b8467d9c1cebe26feb08c640139247fac215782d35371ade9a2136ed6085358"
 "checksum itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
-"checksum jemalloc-ctl 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4e93b0f37e7d735c6b610176d5b1bde8e1621ff3f6f7ac23cdfa4e7f7d0111b5"
-"checksum jemalloc-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "bfc62c8e50e381768ce8ee0428ee53741929f7ebd73e4d83f669bcf7693e00ae"
-"checksum jemallocator 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9f0cd42ac65f758063fea55126b0148b1ce0a6354ff78e07a4d6806bc65c4ab3"
+"checksum jemalloc-ctl 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c502a5ff9dd2924f1ed32ba96e3b65735d837b4bfd978d3161b1702e66aca4b7"
+"checksum jemalloc-sys 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0d3b9f3f5c9b31aa0f5ed3260385ac205db665baa41d49bb8338008ae94ede45"
+"checksum jemallocator 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "43ae63fcfc45e99ab3d1b29a46782ad679e98436c3169d15a167a1108a724b69"
 "checksum join_to_string 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4dc7a5290e8c2606ce2be49f456d50f69173cb96d1541e4f66e34ac8b331a98f"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum lalrpop-intern 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cc4fd87be4a815fd373e02773983940f0d75fb26fde8c098e9e45f7af03154c0"
@@ -2205,6 +2236,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f842b1982eb6c2fe34036a4fbfb06dd185a3f5c8edfaacdf7d1ea10b07de6252"
 "checksum parking_lot_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cb88cb1cb3790baa6776844f968fea3be44956cf184fa1be5a03341f5491278c"
 "checksum parking_lot_core 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "67812d70a819b886655846594086c00ac1f3e8b77c36ef494aa730c620b19d57"
+"checksum paste 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1f4a4a1c555c6505821f9d58b8779d0f630a6b7e4e1be24ba718610acf01fa79"
+"checksum paste-impl 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "26e796e623b8b257215f27e6c80a5478856cae305f5b59810ff9acdaa34570e6"
 "checksum percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831"
 "checksum pest 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "933085deae3f32071f135d799d75667b63c8dc1f4537159756e3d4ceab41868c"
 "checksum pest_derive 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "833d1ae558dc601e9a60366421196a8d94bc0ac980476d0b67e1d0988d72b2d0"
@@ -2212,6 +2245,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum pest_meta 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f249ea6de7c7b7aba92b4ff4376a994c6dbd98fd2166c89d5c4947397ecb574d"
 "checksum petgraph 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)" = "9c3659d1ee90221741f65dd128d9998311b0e40c5d3c23a62445938214abce4f"
 "checksum ppv-lite86 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e3cbf9f658cdb5000fcf6f362b8ea2ba154b9f146a61c7a20d647034c6b6561b"
+"checksum proc-macro-hack 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)" = "982a35d1194084ba319d65c4a68d24ca28f5fdb5b8bc20899e4eef8641ea5178"
 "checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
 "checksum proptest 0.9.4 (registry+https://github.com/rust-lang/crates.io-index)" = "cf147e022eacf0c8a054ab864914a7602618adba841d800a9a9868a5237a529f"
 "checksum quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9274b940887ce9addde99c4eee6b5c44cc494b182b97e73dc8ffdcb3397fd3f0"
diff --git a/crates/ra_prof/Cargo.toml b/crates/ra_prof/Cargo.toml
index e986019ca9..84dcc9813b 100644
--- a/crates/ra_prof/Cargo.toml
+++ b/crates/ra_prof/Cargo.toml
@@ -10,8 +10,8 @@ once_cell = "0.2.0"
 itertools = "0.8.0"
 backtrace = "0.3.28"
 cpuprofiler = { version = "0.0.3", optional = true }
-jemallocator = { version = "0.1.9", optional = true }
-jemalloc-ctl = { version = "0.2.0", optional = true }
+jemallocator = { version = "0.3.2", optional = true }
+jemalloc-ctl = { version = "0.3.2", optional = true }
 
 
 [features]
diff --git a/crates/ra_prof/src/memory_usage.rs b/crates/ra_prof/src/memory_usage.rs
index 7f857942df..8e8cb72997 100644
--- a/crates/ra_prof/src/memory_usage.rs
+++ b/crates/ra_prof/src/memory_usage.rs
@@ -8,10 +8,10 @@ pub struct MemoryUsage {
 impl MemoryUsage {
     #[cfg(feature = "jemalloc")]
     pub fn current() -> MemoryUsage {
-        jemalloc_ctl::epoch().unwrap();
+        jemalloc_ctl::epoch::advance().unwrap();
         MemoryUsage {
-            allocated: Bytes(jemalloc_ctl::stats::allocated().unwrap()),
-            resident: Bytes(jemalloc_ctl::stats::resident().unwrap()),
+            allocated: Bytes(jemalloc_ctl::stats::allocated::read().unwrap()),
+            resident: Bytes(jemalloc_ctl::stats::resident::read().unwrap()),
         }
     }