diff --git a/bin/core/imag-annotate/Cargo.toml b/bin/core/imag-annotate/Cargo.toml
index 3a37f1d1..e703e8bd 100644
--- a/bin/core/imag-annotate/Cargo.toml
+++ b/bin/core/imag-annotate/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 url = "1.2"
 toml = "0.4"
 toml-query = "0.6"
diff --git a/bin/core/imag-gps/Cargo.toml b/bin/core/imag-gps/Cargo.toml
index fc4e1c6c..a9d3f6ff 100644
--- a/bin/core/imag-gps/Cargo.toml
+++ b/bin/core/imag-gps/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 url = "1.2"
 toml = "0.4"
 toml-query = "0.6"
diff --git a/bin/core/imag-link/Cargo.toml b/bin/core/imag-link/Cargo.toml
index 5474648e..1fd848bf 100644
--- a/bin/core/imag-link/Cargo.toml
+++ b/bin/core/imag-link/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 url = "1.5"
 toml = "0.4"
 toml-query = "0.6"
diff --git a/bin/core/imag-mv/Cargo.toml b/bin/core/imag-mv/Cargo.toml
index 4c4cb91c..4269db63 100644
--- a/bin/core/imag-mv/Cargo.toml
+++ b/bin/core/imag-mv/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 
 libimagrt    = { version = "0.6.0", path = "../../../lib/core/libimagrt" }
 libimagerror = { version = "0.6.0", path = "../../../lib/core/libimagerror" }
diff --git a/bin/core/imag-ref/Cargo.toml b/bin/core/imag-ref/Cargo.toml
index 51f8d298..f3d71c5f 100644
--- a/bin/core/imag-ref/Cargo.toml
+++ b/bin/core/imag-ref/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 
 libimagrt          = { version = "0.6.0", path = "../../../lib/core/libimagrt" }
 libimagerror       = { version = "0.6.0", path = "../../../lib/core/libimagerror" }
diff --git a/bin/core/imag-store/Cargo.toml b/bin/core/imag-store/Cargo.toml
index 6102a75f..65d34eff 100644
--- a/bin/core/imag-store/Cargo.toml
+++ b/bin/core/imag-store/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 error-chain = "0.11"
 
diff --git a/bin/core/imag-tag/Cargo.toml b/bin/core/imag-tag/Cargo.toml
index a37d4b2a..622c63a9 100644
--- a/bin/core/imag-tag/Cargo.toml
+++ b/bin/core/imag-tag/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 
 libimagstore    = { version = "0.6.0", path = "../../../lib/core/libimagstore" }
diff --git a/bin/core/imag-view/Cargo.toml b/bin/core/imag-view/Cargo.toml
index 0b78fd71..4a0b5301 100644
--- a/bin/core/imag-view/Cargo.toml
+++ b/bin/core/imag-view/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 handlebars = "0.29.0"
diff --git a/bin/core/imag/Cargo.toml b/bin/core/imag/Cargo.toml
index 5bd6dac1..c7e77d77 100644
--- a/bin/core/imag/Cargo.toml
+++ b/bin/core/imag/Cargo.toml
@@ -22,7 +22,7 @@ maintenance                       = { status     = "actively-developed" }
 [dependencies]
 walkdir = "1"
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 
diff --git a/bin/domain/imag-bookmark/Cargo.toml b/bin/domain/imag-bookmark/Cargo.toml
index 15a20762..b196a463 100644
--- a/bin/domain/imag-bookmark/Cargo.toml
+++ b/bin/domain/imag-bookmark/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 
diff --git a/bin/domain/imag-contact/Cargo.toml b/bin/domain/imag-contact/Cargo.toml
index e51d7f88..a7d0abfd 100644
--- a/bin/domain/imag-contact/Cargo.toml
+++ b/bin/domain/imag-contact/Cargo.toml
@@ -15,7 +15,7 @@ homepage      = "http://imag-pim.org"
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 handlebars = "0.29"
diff --git a/bin/domain/imag-diary/Cargo.toml b/bin/domain/imag-diary/Cargo.toml
index db494457..515fa6c1 100644
--- a/bin/domain/imag-diary/Cargo.toml
+++ b/bin/domain/imag-diary/Cargo.toml
@@ -22,7 +22,7 @@ maintenance                       = { status     = "actively-developed" }
 [dependencies]
 chrono = "0.4"
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 
diff --git a/bin/domain/imag-mail/Cargo.toml b/bin/domain/imag-mail/Cargo.toml
index 4666164c..54ae5da0 100644
--- a/bin/domain/imag-mail/Cargo.toml
+++ b/bin/domain/imag-mail/Cargo.toml
@@ -17,7 +17,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 
 libimagrt       = { version = "0.6.0", path = "../../../lib/core/libimagrt" }
 libimagerror    = { version = "0.6.0", path = "../../../lib/core/libimagerror" }
diff --git a/bin/domain/imag-notes/Cargo.toml b/bin/domain/imag-notes/Cargo.toml
index a9b64461..a47d091e 100644
--- a/bin/domain/imag-notes/Cargo.toml
+++ b/bin/domain/imag-notes/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 itertools = "0.7"
 
 libimagrt        = { version = "0.6.0", path = "../../../lib/core/libimagrt" }
diff --git a/bin/domain/imag-timetrack/Cargo.toml b/bin/domain/imag-timetrack/Cargo.toml
index 462d16ac..41189203 100644
--- a/bin/domain/imag-timetrack/Cargo.toml
+++ b/bin/domain/imag-timetrack/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 chrono = "0.4"
 filters = "0.2"
 itertools = "0.7"
diff --git a/bin/domain/imag-todo/Cargo.toml b/bin/domain/imag-todo/Cargo.toml
index d219460b..de574218 100644
--- a/bin/domain/imag-todo/Cargo.toml
+++ b/bin/domain/imag-todo/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 is-match = "0.1"
diff --git a/lib/core/libimagerror/Cargo.toml b/lib/core/libimagerror/Cargo.toml
index 9cef709b..60a34398 100644
--- a/lib/core/libimagerror/Cargo.toml
+++ b/lib/core/libimagerror/Cargo.toml
@@ -20,5 +20,5 @@ is-it-maintained-open-issues      = { repository = "matthiasbeyer/imag" }
 maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
-log = "0.3"
+log = "0.4.0-rc.1"
 ansi_term = "0.10"
diff --git a/lib/core/libimagrt/Cargo.toml b/lib/core/libimagrt/Cargo.toml
index 437b7f46..0348f4aa 100644
--- a/lib/core/libimagrt/Cargo.toml
+++ b/lib/core/libimagrt/Cargo.toml
@@ -23,7 +23,7 @@ maintenance                       = { status     = "actively-developed" }
 clap = ">=2.17"
 env_logger = "0.4"
 toml = "0.4"
-log = "0.3"
+log = "0.4.0-rc.1"
 xdg-basedir = "1.0"
 itertools = "0.7"
 ansi_term = "0.10"
diff --git a/lib/core/libimagstore/Cargo.toml b/lib/core/libimagstore/Cargo.toml
index 9ed1dee6..380cb32e 100644
--- a/lib/core/libimagstore/Cargo.toml
+++ b/lib/core/libimagstore/Cargo.toml
@@ -22,7 +22,7 @@ maintenance                       = { status     = "actively-developed" }
 [dependencies]
 glob = "0.2.11"
 lazy_static = "0.2"
-log = "0.3"
+log = "0.4.0-rc.1"
 regex = "0.2"
 semver = "0.8"
 toml = "0.4"
diff --git a/lib/domain/libimagdiary/Cargo.toml b/lib/domain/libimagdiary/Cargo.toml
index debcd564..8a39debf 100644
--- a/lib/domain/libimagdiary/Cargo.toml
+++ b/lib/domain/libimagdiary/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 chrono = "0.4"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 itertools = "0.7"
diff --git a/lib/domain/libimagmail/Cargo.toml b/lib/domain/libimagmail/Cargo.toml
index 1f00f56a..facb6fdf 100644
--- a/lib/domain/libimagmail/Cargo.toml
+++ b/lib/domain/libimagmail/Cargo.toml
@@ -20,7 +20,7 @@ is-it-maintained-open-issues      = { repository = "matthiasbeyer/imag" }
 maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
-log = "0.3"
+log = "0.4.0-rc.1"
 email = "0.0.17"
 filters = "0.2"
 error-chain = "0.11"
diff --git a/lib/domain/libimagnotes/Cargo.toml b/lib/domain/libimagnotes/Cargo.toml
index e97c2e8b..95b4d417 100644
--- a/lib/domain/libimagnotes/Cargo.toml
+++ b/lib/domain/libimagnotes/Cargo.toml
@@ -20,7 +20,7 @@ is-it-maintained-open-issues      = { repository = "matthiasbeyer/imag" }
 maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 error-chain = "0.11"
diff --git a/lib/domain/libimagtodo/Cargo.toml b/lib/domain/libimagtodo/Cargo.toml
index fdcc027a..493423cc 100644
--- a/lib/domain/libimagtodo/Cargo.toml
+++ b/lib/domain/libimagtodo/Cargo.toml
@@ -24,7 +24,7 @@ task-hookrs = "0.4"
 uuid = "0.5"
 toml = "0.4"
 toml-query = "0.6"
-log = "0.3"
+log = "0.4.0-rc.1"
 serde_json = "1"
 error-chain = "0.11"
 
diff --git a/lib/entry/libimagentrycategory/Cargo.toml b/lib/entry/libimagentrycategory/Cargo.toml
index 5268d925..1a014798 100644
--- a/lib/entry/libimagentrycategory/Cargo.toml
+++ b/lib/entry/libimagentrycategory/Cargo.toml
@@ -20,7 +20,7 @@ is-it-maintained-open-issues      = { repository = "matthiasbeyer/imag" }
 maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 toml-query = "0.6"
 is-match = "0.1"
diff --git a/lib/entry/libimagentryfilter/Cargo.toml b/lib/entry/libimagentryfilter/Cargo.toml
index 6169265b..a3457f19 100644
--- a/lib/entry/libimagentryfilter/Cargo.toml
+++ b/lib/entry/libimagentryfilter/Cargo.toml
@@ -23,7 +23,7 @@ maintenance                       = { status     = "actively-developed" }
 clap = ">=2.17"
 filters = "0.2"
 itertools = "0.7"
-log = "0.3"
+log = "0.4.0-rc.1"
 regex = "0.2"
 semver = "0.8"
 toml = "0.4"
diff --git a/lib/entry/libimagentrylink/Cargo.toml b/lib/entry/libimagentrylink/Cargo.toml
index 7a9e1505..9807c77c 100644
--- a/lib/entry/libimagentrylink/Cargo.toml
+++ b/lib/entry/libimagentrylink/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 itertools = "0.7"
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 url = "1.5"
 rust-crypto = "0.2"
diff --git a/lib/entry/libimagentrylist/Cargo.toml b/lib/entry/libimagentrylist/Cargo.toml
index 37db3d75..c669b128 100644
--- a/lib/entry/libimagentrylist/Cargo.toml
+++ b/lib/entry/libimagentrylist/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 prettytable-rs = "0.6.*"
 error-chain = "0.11"
 
diff --git a/lib/entry/libimagentrymarkdown/Cargo.toml b/lib/entry/libimagentrymarkdown/Cargo.toml
index 165429b5..709dc771 100644
--- a/lib/entry/libimagentrymarkdown/Cargo.toml
+++ b/lib/entry/libimagentrymarkdown/Cargo.toml
@@ -20,7 +20,7 @@ is-it-maintained-open-issues      = { repository = "matthiasbeyer/imag" }
 maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
-log = "0.3"
+log = "0.4.0-rc.1"
 hoedown = "6.0.0"
 url = "1.5"
 error-chain = "0.11"
diff --git a/lib/entry/libimagentryref/Cargo.toml b/lib/entry/libimagentryref/Cargo.toml
index b79f4010..1b75eeb9 100644
--- a/lib/entry/libimagentryref/Cargo.toml
+++ b/lib/entry/libimagentryref/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 itertools = "0.7"
-log = "0.3"
+log = "0.4.0-rc.1"
 rust-crypto = "0.2"
 toml = "0.4"
 toml-query = "0.6"
diff --git a/lib/entry/libimagentrytag/Cargo.toml b/lib/entry/libimagentrytag/Cargo.toml
index 1dd7d5a7..e85871b3 100644
--- a/lib/entry/libimagentrytag/Cargo.toml
+++ b/lib/entry/libimagentrytag/Cargo.toml
@@ -21,7 +21,7 @@ maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
 clap = ">=2.17"
-log = "0.3"
+log = "0.4.0-rc.1"
 regex = "0.2"
 toml = "0.4"
 itertools = "0.7"
diff --git a/lib/entry/libimagentryview/Cargo.toml b/lib/entry/libimagentryview/Cargo.toml
index 22b3b320..54aa264f 100644
--- a/lib/entry/libimagentryview/Cargo.toml
+++ b/lib/entry/libimagentryview/Cargo.toml
@@ -20,7 +20,7 @@ is-it-maintained-open-issues      = { repository = "matthiasbeyer/imag" }
 maintenance                       = { status     = "actively-developed" }
 
 [dependencies]
-log = "0.3"
+log = "0.4.0-rc.1"
 toml = "0.4"
 error-chain = "0.11"
 
diff --git a/lib/etc/libimaginteraction/Cargo.toml b/lib/etc/libimaginteraction/Cargo.toml
index 534fe29a..1dd0fe62 100644
--- a/lib/etc/libimaginteraction/Cargo.toml
+++ b/lib/etc/libimaginteraction/Cargo.toml
@@ -24,7 +24,7 @@ ansi_term = "0.10"
 clap = ">=2.17"
 interactor = "0.1"
 lazy_static = "0.2"
-log = "0.3"
+log = "0.4.0-rc.1"
 regex = "0.2"
 toml = "0.4"
 error-chain = "0.11"
diff --git a/lib/etc/libimagtimeui/Cargo.toml b/lib/etc/libimagtimeui/Cargo.toml
index bf78cfed..830a16d2 100644
--- a/lib/etc/libimagtimeui/Cargo.toml
+++ b/lib/etc/libimagtimeui/Cargo.toml
@@ -22,7 +22,7 @@ maintenance                       = { status     = "actively-developed" }
 [dependencies]
 clap = ">=2.17"
 lazy_static = "0.2"
-log = "0.3"
+log = "0.4.0-rc.1"
 chrono = "0.4"
 regex = "0.2"
 
diff --git a/lib/etc/libimagutil/Cargo.toml b/lib/etc/libimagutil/Cargo.toml
index bd73ae30..296fe396 100644
--- a/lib/etc/libimagutil/Cargo.toml
+++ b/lib/etc/libimagutil/Cargo.toml
@@ -29,7 +29,7 @@ maintenance                       = { status     = "actively-developed" }
 url = "1.5"
 boolinator = "2.4.0"
 lazy_static = "0.2"
-log = "0.3"
+log = "0.4.0-rc.1"
 regex = "0.2"
 tempfile = "2.1"